[Drakelist] T-4XC sudden loss of RF output?
Hello, I'm hoping someone could get me pointed in the right direction with regard to my T-4XC. I've been achieving 100W or above (depending on the band) from the radio consistently in the past. In fact, as recent as a day ago. This afternoon I was tuning up to operate on 80M and now I'm only getting 10W max into a known DL. What would be the cause of this sudden loss of output? Thank you advance! -Joe WS8X St. Louis, MO ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] Looking for Crystals
Hi All, Does anyone on the list have some shortwave crystals for the R4 series lying around? If so, please let me know what you have and how much you would need for them. Thanks much and very 73. Kevin :) Amateur Radio: K7RX ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] R4A preselector slippage
Joe - Sounds like wear in the vernier drive. The steel balls tend to wear a groove in the center shaft after 40 years or so. You may be able to get a repair kit from John Kriner, I don't know if he still has them. 'The Man's Amateur Parts Supply' or 'tr7dude' on eBay. Another list member repaired his by turning a new shaft himself. 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 2-C/2-NT, 4-B, C-Line& TR-4/C Service Supplement CDs Joe Loverti wrote: Fellows I have a question about the preselector on my R4A: The red pointer doesn't want to move past the 15 mark on the dial face. If I apply some light upward pressure to the bar connected to the three tuning slugs the dial will pointer will move up to the 10 mark and pull the slugs further out of the tuning coils. I believe the red pointer is correct because on the lower bands: 80 / 40 / 20 it falls within the correct range when tuning the receiver. I can't see any obvious slipping of the mechanism and wonder what's going on? ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] L4-B Power Switch
On Tue, 9 Nov 2010 19:03:29 -0500, Wayne Rogers wrote: >Jim: See the following: >http://www.wb4hfn.com/DRAKE/DrakeArticles/L4B-SW/L4B-Switch01.htm > >You might be able to restore your switch. Not mentioned in this excellent article is lubrication. The moving parts of the switch should be re-lubricated with a small dab of a grease that can withstand high voltages. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://radiojim.exofire.net http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] L-4B Power Switch
Question for the group: to address the power surge issue and the vulnerable power switch issue, I bought an Ameritron ARB-704 rated 240v. Until it arrived I didn't know it is also rated 10A. The L-4B takes 15. Any way to bulk up the unit to 15A? Sent from my Verizon Wireless BlackBerry ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] L4-B Power Switch
This is a resource for a long-term fix, once the switch is repaired: http://www.w8zr.net/vintage/amplifiers/Drake%20L4B%20Modification/Drake%20L-4B%20Modification.htm Paul, W9AC - Original Message - From: "Wayne Rogers" To: "James Bridgers" ; Sent: Tuesday, November 09, 2010 7:03 PM Subject: Re: [Drakelist] L4-B Power Switch Jim: See the following: http://www.wb4hfn.com/DRAKE/DrakeArticles/L4B-SW/L4B-Switch01.htm You might be able to restore your switch. Wayne N1WR -- From: "James Bridgers" Sent: Tuesday, November 09, 2010 6:34 PM To: Subject: [Drakelist] L4-B Power Switch Greetings All, Well it had to happen sooner or later, but I would prefer later. Anyway what to do when the power switch on the L4-B in not repairable? Anyone got any suggestions? Thanks in advance for your help 73 All Rod N4BNO ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] R4A preselector slippage
Fellows I have a question about the preselector on my R4A: The red pointer doesn't want to move past the 15 mark on the dial face. If I apply some light upward pressure to the bar connected to the three tuning slugs the dial will pointer will move up to the 10 mark and pull the slugs further out of the tuning coils. I believe the red pointer is correct because on the lower bands: 80 / 40 / 20 it falls within the correct range when tuning the receiver. I can't see any obvious slipping of the mechanism and wonder what's going on? ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] L4-B Power Switch
Jim: See the following: http://www.wb4hfn.com/DRAKE/DrakeArticles/L4B-SW/L4B-Switch01.htm You might be able to restore your switch. Wayne N1WR -- From: "James Bridgers" Sent: Tuesday, November 09, 2010 6:34 PM To: Subject: [Drakelist] L4-B Power Switch Greetings All, Well it had to happen sooner or later, but I would prefer later. Anyway what to do when the power switch on the L4-B in not repairable? Anyone got any suggestions? Thanks in advance for your help 73 All Rod N4BNO ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] WTB: SPR-4 Main Tuning Knob
The dimple in mine is quite worn and unattractive so I'm looking to replace it. Any help would be greatly appreciated. 5-NB blanker and preselector dial decals have been found but I'm still in the market for an SCC-4 calibrator. I understand that there's some "universal" ones out there, but I prefer to keep my Drake parts OEM. Thanks to those that helped and 73 to all, Bob AG5X___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] L4-B Power Switch
Greetings All, Well it had to happen sooner or later, but I would prefer later. Anyway what to do when the power switch on the L4-B in not repairable? Anyone got any suggestions? Thanks in advance for your help 73 All Rod N4BNO ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
