[drakelist] R-4 Noise Blanker
Stephan Sever <[EMAIL PROTECTED]> made an utterence to the drakelist gang -- This is my first posting to the drake list, hope I get it right! I am having a problem with an R-4 receiver in the noise blanker. The receiver has had a full alignment done, and is working very well except when the noise blanker is turned on. Signal strength is reduced considerably and the incoming signals are very distorted, the same effect as if the blanker threshold was up too far. By doing some signal tracing with a scope it seems the NB is working but is being overdriven (for lack of a better term). All resistances check good, but upon doing a voltage check I had about +3V on pin 1 of V3 (12be6) instead of -11V as the manual called for. I found C62 (12 pf) was open, but after changing it the voltage is now at -.7V or so, not -11V. Still doesnt seem like enough negative bias on V3 and the noise blanker still isn't functioning properly. If anyone has any suggestions or have had this problem before I would be happy to hear from you. Many thanks and 73 Stephan Sever II KG9BV __ Celebrate Yahoo!'s 10th Birthday! Yahoo! Netrospective: 100 Moments of the Web http://birthday.yahoo.com/netrospective/ -- On Behalf of Stephan Sever <[EMAIL PROTECTED]> Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
Re: [drakelist] Replacement speaker for the MS-4???
"Jim Pruitt" <[EMAIL PROTECTED]> made an utterence to the drakelist gang -- Hello Phil. I am not sure how much this will help but a few years ago (5 maybe) someone posted to this list saying that the Radio Shack 40-1261 speaker 5"x7" was a good replacement. Unfortunately Radio Shack discontinued it not too long after that. You might be able to find one somewhere or a good quality 5x7 from MCM or Parts Express and others might make a good replacement speaker for the MS-4. Good Luck. Jim Pruitt - Original Message - From: "Philip M. Roberts" <[EMAIL PROTECTED]> To: Sent: Sunday, March 06, 2005 10:47 PM Subject: [drakelist] Replacement speaker for the MS-4??? > > "Philip M. Roberts" <[EMAIL PROTECTED]> made an utterence to the drakelist gang > -- > Anyone know a source for a replacement speaker for the MS-4. I have a good > MS-4 cabinet ,but the speaker has gone bad. > > > Thanks , > > Phil W8UV -- On Behalf of "Jim Pruitt" <[EMAIL PROTECTED]> Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
[drakelist] B line main tuning knob inserts.
"Gerry" <[EMAIL PROTECTED]> made an utterence to the drakelist gang -- I just want to pass along how pleased I am with the KC9YS inserts. They have the same look and finish as the originals and really spruce up that old B line. They may be a bit pricy but let's be realistic about this: how much would you pay for a good B line knob these days? Thought I'd have to "fish around" the auction place and pay ridiculously high prices for a pair of knobs when I found this particular source on the WB4HFN web site. Because everyone else does it these days, let me state that I don't know Alan, KC9YS. I'm just very happy with his product. Gerry -- On Behalf of "Gerry" <[EMAIL PROTECTED]> Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
[drakelist] TR-3 PTO Now working !!!!!!
Thanks to Bill Frost and Garey Barrel pointing out the jumper. So simple. I could not get the low resistance on pin 7 and had no idea that that wire jumper was the problem. I just need a xtal for the 40 meter band and I am in business. The schematic is very poor in showing the connection. However it also shows you need read read read the manual. Thanks so much for the help Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.8.6 - Release Date: 2/7/2005
[drakelist] T4XB, slight carrier and hum
<[EMAIL PROTECTED]> made an utterence to the drakelist gang -- Hi everyone, My T4XB still appears to have some hum (and carrier) when I press the PTT and listen in another receiver. I assume there should be a slight amount of carrier that can't be nulled out completely. As far as the hum, the AC4 has all new caps and the 60mfd and 10mfd caps have been changed in the T4XB. Where next would be a logical culprit? I see a .47 cap in there...hmmm Thanks for any advice! John K7FD -- On Behalf of <[EMAIL PROTECTED]> Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
[drakelist] Illuminating the panel meter (MN-7, MN-2700 antenna tuners)
I would like to add a 12.6 vdc mini-lamp behind the large meter on the MN-7 and MN-2700 tuners. But when I took the case off, I found that these meters have solid black plastic/bakelite backs, with no capability for adding illumination. Anyone fooled around with this challenge? Any suggestions? Perhaps there is a replacement swr meter I might substitute? Appreciate any leads Dave W1DV/2
[drakelist] Need Drake PTO Assembly
"Peter Hoon" <[EMAIL PROTECTED]> made an utterence to the drakelist gang -- Hello, Would like to purchase either a Drake R4A, R4B, R4C, T4X, T4XB, T4XC or TR7 PTO assembly in working or non working condition, as long as mechanical assembly is OK. Would also consider a defective R4A or R4A junker with a clean front panel and good PTO mechanics. Electronics can be defective; need not be working. Tks, Peter in Nederland, Colorado VE1CHS -- On Behalf of "Peter Hoon" <[EMAIL PROTECTED]> Submissions:drakelist@www.zerobeat.net Unsubscribe:[EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost:[EMAIL PROTECTED] - help in body of message Zerobeat Web Page: http://www.zerobeat.net Brought to you courtesy of TLCHost.net http://www.tlchost.net/ --
