Re: [AMRadio] Valiant Problems
Bill: Increase the size of the fuse to 1.8 amp. or so. Johnson had problems with that in some transmitters, even the Valiant II. There was a factory notice about it and they first changed it to a slo-blo fuse which fixed most problems. That rating is right on the ragged edge and should have been 1.5 times the actual current draw. You might want to measure it to see what the supply is drawing to be sure it is proper, meaning less than about 1.5 amps or so. Put an ammeter in the variac setup to measure it. The manual specs the modulator at 50-70 mils. Use the meter on the transmitter and set the current in that range with the meter set in the MOD position. The later manual specs the RF amp. grid bias at -69 volts with respect to ground. That setting will do what you want. Also be sure to set the clamp pot after you get it right. Be absolutely sure the meter shunts are tight. They used nichrome wire for the shunts with which will not take solder. They are just crimped tightly then solder is flowed over them to hold them in place. Chances are, over the years heat and current flow has loosened the solder. You can replace them with wire wound resistors of the proper value and wattage rating. The meter has an internal resistance of 20 ohms, as I recall. 73 Jim de W5JO Could really use some help here from those of you who have had experience with the Johnson Valiant xmtr. Three questions... 1) Why does the 1.6 amp slo-blo low voltage transformer primary fuse blow after an hour or so of just sitting there with the filament switch on with no plate voltage applied? The 300 vdc and -250 vdc bias circuits are reading as they should when measured. Transformer and filter choke case temperature are warm to the touch but not HOT. Line voltage is @ 110vac thru a Variac. 2) What is the correct setting for the voltage at the modulator grids (pin 5)? Page 9 of the ops manual says -55 volts, page 31, socket voltage chart says -46 volts, and the assembly manual eratta sheet says -35 volts. 3) What is the correct voltage for the RF amp bias? Page 8 of the ops manual the socket voltage chart says -70 volts, service bulletin #1 says -52 volts and the assembly manual errata sheet says -85 volts. Any help here would be greatly appreciated. Thanks, Bill, [EMAIL PROTECTED]
Re: [AMRadio] valiant problems
Tony well, I just looked in the notes on that valiant and what I installed were the large 6KV mica transmitting caps. I had to locate them whereever I could find room for them and route them to the switch. You'll have to do the same. Beware of putting 2KV, 2.5KV or 3KV mica's in there. I have blown a few of them in valiants. the 6KV will hand in there no matter what. In my rig, the 330pf SET had blown.. visible carbon burns on them and etc.. I changed it out with a 330pf 2.5KV mica and it lasted about a week. I changed it out with a 330pf set and it acted better but still somewhat squirrelly in its tuning on 75M. After closer inspection it was found that the 150pf set were carbon tracked too but on the BACKSIDE where you would not see it if you did not physically move the caps over so you could look LOL changed that set out, also with a 6KV mica and she has performed beautifully every since. Ronnie On Sat, 11 Oct 2003 22:41:09 -0400, Anthony W. DePrato wrote The AM voice of Shreveport, Louisiana USA formerly WN5AIA and WB5AIA I got my Extra Class the old fashioned way... I earned it! ___ Ronnie love the above line.. i did also.. thanks ill put out a request for a set of them. guess ill try for two of each as i have two of the killer transmitters 73 Tony Anthony W. DePrato WA4JQS Since 1962 WA4JQS / VP8BZL / VP8SSI / 3Y0PI CQ DX Hall Of Fame # 35 ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio The AM voice of Shreveport, Louisiana USA formerly WN5AIA and WB5AIA I got my Extra Class the old fashioned way... I earned it!
Re: [AMRadio] valiant problems
Ronnie W5SUM: were you talking about the A2 series or F2 series caps listed below.. (CFT)A2000150AOG 150 pF 2.5 wkvdc (5kv test) $10 (CFT)F2B00150ARA 150 pF 5 kv 1.5 amps $65 (CFT)A2000330AOG 330 pF 2.5 wkvdc (5kv test) $ 8 since you were talking about the high cost i take it you put the $65.00 units in ? 73 Tony wa4jqs --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html The reason this message is shown is because the post was in HTML or had an attachment. Attachments are not allowed. To learn how to post in Plain-Text go to: http://www.expita.com/nomime.html ---
[AMRadio] valiant problems
Ronnie: just wonder if the ceramic door knobs below would work ? they are HT 50 type CFC)HT580140-5 140pF 5kv 10a $19 (CFC)HT580300-75 300pF 7.5kv 7.4a $20 73 Tony wa4jqs --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html The reason this message is shown is because the post was in HTML or had an attachment. Attachments are not allowed. To learn how to post in Plain-Text go to: http://www.expita.com/nomime.html ---
[AMRadio] valiant problems
Ronnie W5SUM: I just reread your email about the 330pf and 150 pf series/parallel silver mica's glad i did.. i have ordered two sets of caps now that have got dumb and got another valiant last Friday..figured i would do one then the other.. i found the silver mica's at 1000v in mousers but i think ill go with your suggestion and look for transmitting caps. (anyone have them out there.. before i spend my xyl's car payment on them ?) just finished up one of my SX 99 receivers this week and put the other one on the bench while i am waiting for parts. just about have it recapped also. well i needed to clean one of the benches off for the valiant so i got the Zenith D-116 finished up today and back in the case. got a two wheeler and dragged the old girl out to the shop.. set up the A frame and put her on the bench hi hi.. while i was recovering i was thinking what receiver i wanted to use with the second Valiant . saw an SX 101 A setting under the bench nice clean unit.. power it up worked great.. but has 28 BB's in her.. so set her on the other bench and will start recapping her this week . Je no wonder I never have any time to get on the air.. If you come up with any more great ideals while i have the transmitter on the bench let me know.. BTW thinking about buying a small crane to use around here .. wonder where i can find some HO gage track. 73 Tony wa4jqs
Re: [AMRadio] valiant problems
The AM voice of Shreveport, Louisiana USA formerly WN5AIA and WB5AIA I got my Extra Class the old fashioned way... I earned it! ___ Ronnie love the above line.. i did also.. thanks ill put out a request for a set of them. guess ill try for two of each as i have two of the killer transmitters 73 Tony Anthony W. DePrato WA4JQS Since 1962 WA4JQS / VP8BZL / VP8SSI / 3Y0PI CQ DX Hall Of Fame # 35
Re: [AMRadio] Valiant problems
At 03:49 PM 10/6/2003 -0500, you wrote: ah a glutton for pain eh? LOL... man those valiants will put you to the test om !!! get it working and put that beast on the air... 3880 or 3885 any morning 4am - 6am central.. someone is always there!! 73's Ronnie SNIP: Well Ronnie i alway was hard headed.. i listen a lot on 3880 and also 7285 even hear a station sometimes on 14285. but the 25 watts out of the ht 37's i have does not do very well lol. putting the thunderbolt on the other bench and redoing the old girl also. then watch out hi hi.. have an 2kd5 waiting for the other valiant.. now if i can just find that #%#% resistor that is changing value on me in this sx 99 audio is great for about 15 mins then gets distorted. man i hate checking resistors snip test snip test snip test solder ,solder ,solder hi hi.. oh well now to get the silver mico's ordered.. Ronnie you might as well find your notes and send them too me while i freeze out in the work shop all winter.. hummm could hook up that glove 680a and r390 setting under the bench.. hu 73 Tony wa4jqs
Re: [AMRadio] Valiant problems
get it working and put that beast on the air... 3880 or 3885 any morning 4am - 6am central.. someone is always there!! no wonder i never hear anyone i am chasing dx on 20 cw at that hour.. guess i better drop down in freq 73 Tony wa4jqs Anthony W. DePrato WA4JQS South Sandwich Island Antarctic Dxpedition Group VP8BZL VP8SSI 3Y0PI V31SS ZD8JQS WA4JQS/4K1 WA4JQS/K4C WA4JQS/ZS1 CQ DX HALL OF FAME # 35
Re: [AMRadio] valiant problems
hi Ronnie: would love to get your ideals on the Valiant. got my caps ordered today.. only $65.00 worth to replace all the eletro's and .005 disks. 40 of those . wanted to do it right when i put it on the bench.. btw i may have another one next month.. if things work out. 73 Tony wa4jqs
Re: [AMRadio] valiant problems
well I don't have all of my notes right here in front of me but let me tell you what I can remember right off the top of my head. #1, your doing the right t hing shotgunning all of the caps, regardless if they are paper bypasses, ceramic disks, or electrolytics. Thats an important first step. Now.. look on your schematic at the output section. They use series/parallel silver mica's to come up with the output loading caps. These are notorious for going bad on you. If they don't just fail right off, th ey can do squirrely things to your output loading, cause rf spurs in area's where you don't want them, and, if they fail, can actually take out the rf choke that is in the B+ line and etc. Those damn things are receiving silver mica's rated 500v each. Barely adequate, if that. Why Johnson did this I will never know. One of the series/parallel combo's adds up to 330pf and one adds up to 150pf ( I think ). Replace each of these with a SINGLE 3000V or 6000V transmitting mica. You can get them from Surplus Sales in Nebraska. They are not cheap, but what price for replacing a lot of other stuff that can be burned up if those originals fail? You will have a small difficulty finding room for these big caps, but you can do it. I did. Also, there is another little cap that is multi section in there, total capacitance is 1200pf. I have never had one fail but it could. Just look at it real good. Okay.. the VFO.. its a bitch to get into BUT.. you want to pry it open and remove that bastard 18K 2 watt resistor. You want to add a small solder stip somewhere under the chassis, right beneath the VFO and tie a new 18K 5 watt ceramic resistor, across the solder strip, with one end of the resistor soldered to the ground lug that attaches the solder strip to the chassis. Then run a wire from the other end of the new 18K resistor ( the end above ground ) to the point inside the VFO where the original resistor was hooked up. That factory resistor is well known for failure and when it goes, it eats up all kinds of components in the VFO. Its well worth the trouble to move it out of there, plus, it takes some heat out of the VFO. Tubes. don't put 6146A's, B's or W's in your Valiant. It was designed around plane jane 6146's. You can still get them. I have the name of a fellow at home somewhere, down in florida that will sell you amperex 6146's for a very good price, brand new in the boxes. The modulation section especially likes them, and the RF will be much easier to neutralize with these. Examine the bandswitch real well, as well as the switch that switches capacitance in and out of the output loading. Look for carbon traces. If they are there, on the ceramic, scrub them off with a pencil eraser IF you can get to them. If not, get it off the best you can. And WHILE you have the beast out of its cabinet, clean all switches and controls with De-Oxit. after you get everthing changed out, neutralize the rig, and set the idling modulator current as per specs in the manual. DON'T PUT THE SCREWS BACK IN THE CABINET UNTIL YOU HAVE RUN IT A WEEK OR TWO.. LOL man.. its a bitch to pry it out of that cabinet when all the screws are in it, and you can visually see fire inside ( this happened to me when a modulation transformer shorted to ground ). Valianta are not operator freindly. I love them, they are good radio's but if you don't want to be working on a radio a lot.. a valiant is not a good rig to have. Its not as reliable as a Ranger. But its a damned sight better than a DX100 or Apache LOL good luck with your rig and holler at me if I can help in any way. Ronnie On Fri, 26 Sep 2003 13:35:16 -0500, Anthony W. DePrato wrote hi Ronnie: would love to get your ideals on the Valiant. got my caps ordered today.. only $65.00 worth to replace all the eletro's and .005 disks. 40 of those . wanted to do it right when i put it on the bench.. btw i may have another one next month.. if things work out. 73 Tony wa4jqs ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio The AM voice of Shreveport, Louisiana USA formerly WN5AIA and WB5AIA I got my Extra Class the old fashioned way... I earned it!
Re: [AMRadio] valiant problems
You got that right Ronnie Valiants aren't operator friendly..What's this about being better than a DX 100. I have a DX 100 I will put up against your Valiant any day. Heh, Heh. Where's the shoot out??? 72 (QRP for 73) Jim de W5JO - Original Message - From: w5sum [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Friday, September 26, 2003 3:36 PM Subject: Re: [AMRadio] valiant problems Valianta are not operator freindly. I love them, they are good radio's but if you don't want to be working on a radio a lot.. a valiant is not a good rig to have. Its not as reliable as a Ranger. But its a damned sight better than a DX100 or Apache LOL good luck with your rig and holler at me if I can help in any way. Ronnie On Fri, 26 Sep 2003 13:35:16 -0500, Anthony W. DePrato wrote hi Ronnie: would love to get your ideals on the Valiant. got my caps ordered today.. only $65.00 worth to replace all the eletro's and .005 disks. 40 of those . wanted to do it right when i put it on the bench.. btw i may have another one next month.. if things work out. 73 Tony wa4jqs ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio The AM voice of Shreveport, Louisiana USA formerly WN5AIA and WB5AIA I got my Extra Class the old fashioned way... I earned it! ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio
Re: [AMRadio] valiant problems
Ronnie and Jim: thanks for the info..and Jim dx 100's are ok for qrp... hi hi.. looks like i have my winter project guess ill put the 51j3 and r 390 back under the bench..oh well.. sounds a bit like recapping an sx 42 or sx 62a hi... ok on the combo mic's ill get the book back out and get them ordered.. i had forgotten about the 18k deal.. knew there was something eating at the back of my brain now i recall what it was.. . maybe i should think about restoring one of my HT 32's it might get done faster hi.. 73 Tony wa4jqs Anthony W. DePrato WA4JQS Since 1962 WA4JQS / VP8BZL / VP8SSI / 3Y0PI CQ DX Hall Of Fame # 35
Re: [AMRadio] valiant problems
I just traded my valiant off LOL On Fri, 26 Sep 2003 18:35:55 -0600, Jim Wilhite wrote You got that right Ronnie Valiants aren't operator friendly..What's this about being better than a DX 100. I have a DX 100 I will put up against your Valiant any day. Heh, Heh. Where's the shoot out??? 72 (QRP for 73) Jim de W5JO - Original Message - From: w5sum [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Friday, September 26, 2003 3:36 PM Subject: Re: [AMRadio] valiant problems Valianta are not operator freindly. I love them, they are good radio's but if you don't want to be working on a radio a lot.. a valiant is not a good rig to have. Its not as reliable as a Ranger. But its a damned sight better than a DX100 or Apache LOL good luck with your rig and holler at me if I can help in any way. Ronnie On Fri, 26 Sep 2003 13:35:16 -0500, Anthony W. DePrato wrote hi Ronnie: would love to get your ideals on the Valiant. got my caps ordered today.. only $65.00 worth to replace all the eletro's and .005 disks. 40 of those . wanted to do it right when i put it on the bench.. btw i may have another one next month.. if things work out. 73 Tony wa4jqs ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio The AM voice of Shreveport, Louisiana USA formerly WN5AIA and WB5AIA I got my Extra Class the old fashioned way... I earned it! ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio The AM voice of Shreveport, Louisiana USA formerly WN5AIA and WB5AIA I got my Extra Class the old fashioned way... I earned it!
RE: [AMRadio] valiant problems
Anthony, There are many possible modifications for the Valiant. A plethora of ideas are touched upon at the following link: http://www.amwindow.org/tech/htm/valiantaudio.htm Good Luck! PS Plan on having that Valiant out of the case, and on it's side for the next 6 months! Also beware of the last screw into the case effect. This is when you finally think you are done, and the case gets put back on. Somewhere along the way a screw or two got lost. Go to the coffee can full of hardware to find replacements. You find two screws, but they are 1 long 8-32 whereas the originals were 1/2 long 8-32. At last you are done, and you set up everything nice on the operating table making cable routing neat, and in general the shack ready for a picture (first time in a year). You turn on your receiver, hear W5OMR calling a CQ with an S-meter pegging signal, and that excellent 250 TH audio. You then zero beat him with your valiant, and when he pauses you hit the plate switch. What happens then? Well that last screw you put in extended into the Valiant high voltage area shorting it out. The 866's flash over pulling high current, the lights dim, the fuse does not blow (you forgot that you replaced the fuse with a sawed off volume control shaft), you hit the plate switch, and it doesn't shut off because the contacts are welded on now. Finally the house circuit breaker pops, but too late for your HV plate transformer, and 866's. They are toast. The moral of the story here is to leave the last two screws out, and enjoy your wonderful Valiant! :) Regards, Jim Candela WD5JKO -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Jim Wilhite Sent: Tuesday, September 23, 2003 9:12 PM To: amradio@mailman.qth.net Subject: Re: [AMRadio] valiant problems Tony: Mouser has some 16 uf. 450 volt caps for the bias. In the same listing as those, you will find 80s. I believe 80 is what the HV circuit used. Part numbers are 75- TVA1803.1 for the 16s and 75-TVA1716 for the 80s. Don't know what the Thunderbolt had but will bet you can find them at Mouser also. 800-346-6873. As for audio mods to the Valiant, Steve W8TOW has some and there are others that do the job. I believe I have some and will copy to send to you if you want. Let me know. I am surprised Steve hasn't posted his web site for you to look by now, surely he will read your post and do so soon. If he doesn't, do a Google for his call. 73 Jim de W5JO - Original Message - From: Anthony W. DePrato [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Tuesday, September 23, 2003 6:05 PM Subject: [AMRadio] valiant problems Well after setting for over a year . i wanted to fire the valiant up last weekend.. everything went great till i keyed the relay.. HUMMM. man do not remember that hum in the 75A2 last time i keyed the transmitter.. switch the meter to MOD keyed transmitter PEG.. fuse blows... OK... put in another fuse fire it up ok key dowkey antenna relay HU... this is not right hi hi start undoing antenna . SPARK SPARK.. bad sign... got the old 260 out have 60 volts a.c. to ground.. well no wonder it hummmed hi.. hi.. now to find some 15 mfd 450v caps jezzz why not just recap the whole transmitter while i have it on the bench... do the Audio mod also... my question where was the audio mod found ? have to get the old AES book out tomorrow and order the caps.. guess i should just recap the Thunderbolt while i am at it.. what is a good place to find HV caps ? fired up the HT 37 SX 115 on 40mts . and worked a few stations running 20 watts high power AM hi hi.. Thanks for any help 73 Tony wa4jqs Anthony W. DePrato WA4JQS Since 1962 WA4JQS / VP8BZL / VP8SSI / 3Y0PI CQ DX Hall Of Fame # 35 ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio
Re: [AMRadio] valiant problems
You turn on your receiver, hear W5OMR calling a CQ with an S-meter pegging signal, and that excellent 250 TH audio. You then zero beat him with your valiant, and when he pauses you hit the plate switch. What happens then? Well that last screw you put in extended into the Valiant high voltage area shorting it out. The 866's flash over pulling high current, the lights dim, the fuse does not blow (you forgot that you replaced the fuse with a sawed off volume control shaft), you hit the plate switch, and it doesn't shut off because the contacts are welded on now. Finally the house circuit breaker pops, but too late for your HV plate transformer, and 866's. They are toast. The moral of the story here is to leave the last two screws out, and enjoy your wonderful Valiant! :) Please tell me this didn't happen to you this morning, Jim It would have been nice to work ya. I did talk to ol' Uncle Ed, up in Harrisburg, PA/WA3PUN as well as Bill, WA3YNR... along about 2am, I went inside the house (I forget why) but I never made it back out. 6 hours later, I know everyone is not on 3.880 anymore. *sigh* I need some regular sleeping habits. 73 = Best Regards, -Geoff/W5OMR
RE: [AMRadio] valiant problems
Hi Jim: thanks for the site info.. ill check it out.. yep been there done that hi hi.. also... i now check it out before it leaves the bench... learned not to fix everything back nice and neat till it have been test ran hi... done it too many times.. have a great weekend.. 73 Tony wa4jqs --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html The reason this message is shown is because the post was in HTML or had an attachment. Attachments are not allowed. To learn how to post in Plain-Text go to: http://www.expita.com/nomime.html ---
Re: [AMRadio] valiant problems
HI Ronnie: How have you been ? been a while since we talked.. i ordered all the disks for the power supply the a.c. line filters figured i would just replace them all while i was in it. ill check all the tubes also.. i think that most of the caps are leaking. and one of the l/c filter caps is bad also ?.. yes would like all the help i can get.. i may have another one in a couple weeks if a trade works out.. 73 Tony wa4jqs
Re: [AMRadio] valiant problems
Jeff, That scenerio happened several times in the past when I had my PP 805, and PPP 808's on the air (circa 1983 to 86). Dam switch contacts kept welding! Jim Geoff/W5OMR [EMAIL PROTECTED] wrote: You turn on your receiver, hear W5OMR calling a CQ with an S-meter pegging signal, and that excellent 250 TH audio. You then zero beat him with your valiant, and when he pauses you hit the plate switch. What happens then? Well that last screw you put in extended into the Valiant high voltage area shorting it out. The 866's flash over pulling high current, the lights dim, the fuse does not blow (you forgot that you replaced the fuse with a sawed off volume control shaft), you hit the plate switch, and it doesn't shut off because the contacts are welded on now. Finally the house circuit breaker pops, but too late for your HV plate transformer, and 866's. They are toast. The moral of the story here is to leave the last two screws out, and enjoy your wonderful Valiant! :) Please tell me this didn't happen to you this morning, Jim It would have been nice to work ya. I did talk to ol' Uncle Ed, up in Harrisburg, PA/WA3PUN as well as Bill, WA3YNR... along about 2am, I went inside the house (I forget why) but I never made it back out. 6 hours later, I know everyone is not on 3.880 anymore. *sigh* I need some regular sleeping habits. 73 = Best Regards, -Geoff/W5OMR ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html The reason this message is shown is because the post was in HTML or had an attachment. Attachments are not allowed. To learn how to post in Plain-Text go to: http://www.expita.com/nomime.html ---
Re: [AMRadio] valiant problems
Tony: Mouser has some 16 uf. 450 volt caps for the bias. In the same listing as those, you will find 80s. I believe 80 is what the HV circuit used. Part numbers are 75- TVA1803.1 for the 16s and 75-TVA1716 for the 80s. Don't know what the Thunderbolt had but will bet you can find them at Mouser also. 800-346-6873. As for audio mods to the Valiant, Steve W8TOW has some and there are others that do the job. I believe I have some and will copy to send to you if you want. Let me know. I am surprised Steve hasn't posted his web site for you to look by now, surely he will read your post and do so soon. If he doesn't, do a Google for his call. 73 Jim de W5JO - Original Message - From: Anthony W. DePrato [EMAIL PROTECTED] To: amradio@mailman.qth.net Sent: Tuesday, September 23, 2003 6:05 PM Subject: [AMRadio] valiant problems Well after setting for over a year . i wanted to fire the valiant up last weekend.. everything went great till i keyed the relay.. HUMMM. man do not remember that hum in the 75A2 last time i keyed the transmitter.. switch the meter to MOD keyed transmitter PEG.. fuse blows... OK... put in another fuse fire it up ok key dowkey antenna relay HU... this is not right hi hi start undoing antenna . SPARK SPARK.. bad sign... got the old 260 out have 60 volts a.c. to ground.. well no wonder it hummmed hi.. hi.. now to find some 15 mfd 450v caps jezzz why not just recap the whole transmitter while i have it on the bench... do the Audio mod also... my question where was the audio mod found ? have to get the old AES book out tomorrow and order the caps.. guess i should just recap the Thunderbolt while i am at it.. what is a good place to find HV caps ? fired up the HT 37 SX 115 on 40mts . and worked a few stations running 20 watts high power AM hi hi.. Thanks for any help 73 Tony wa4jqs Anthony W. DePrato WA4JQS Since 1962 WA4JQS / VP8BZL / VP8SSI / 3Y0PI CQ DX Hall Of Fame # 35 ___ AMRadio mailing list AMRadio@mailman.qth.net http://mailman.qth.net/mailman/listinfo/amradio
Re: [AMRadio] valiant problems
Hi Jim: thanks.. ill give them a call tomorrow from work. ill get the thunderbolt book out and just kill two birds at once. hi.. ill check out steve's site.. thanks for the great info.. found me a OS8 scope this summer. this one has case cover book looks like new. had been setting for years.. think ill recap it also then i think ill be set for a fair AM station. cu on the air soon. 73 Tony wa4jqs
