[Drakelist] R-4A Passband Tuning

Greetings to you all. I'm new to the Drake world and I just recently traded for a R-4A/T-4X combo that had sat unused for many years. While the equipment is in pretty decent shape over all, all of the mechanical elements were gummed up with hardened grease, oil and nicotine deposits (apparentl

Re: [Drakelist] T4XC

Does it still work when the transceive switch is in separate or xmtr? When you say it will not go into tune what do you mean? No output? No plate current? Need more info. A wild guess would be the transceive switch wafers. 73, Bob WW3QB From: Richard Tucker To

Re: [Drakelist] T4XC

Sorry Garey. I guess I assumed that it would be asssumed by those on the list that the PS was plugged in and the T4XC was switched on. PS plugged in Mode switch to SSB All knobs set up for 40cw It turns on with a "thunk" AC4 has recent Heathkit shop kit installed and worked when last used. All t

Re: [Drakelist] Jackson Bros drive needed

http://mainline-group.com/ still manufactures a range of Jackson Bros capacitors, reduction drives and accessories. Their website isn't very helpful at the moment but a phone call might be. On 16-Jul-11 19:39, Lawrence Matheson wrote: Does anyone have a junk t4 or r4 chassis that has the RF Tu

Re: [Drakelist] T4XC

Rick - Ya gotta give us more than that!! Is the power supply connected? Is it plugged in? Is it turned on? Do you hear it 'thunk' when you turn it on? Do the tubes and pilot lamps light up? Are ALL the tubes lit? Does the meter move? Does it do 'anything' in any switch position? 73, Gare

[Drakelist] T4XC

T4XC was working fine and sat for a while (6mo) Hooked up with R4C . Switched to tune. Nothing. It would not go into tune. Any thoughts of what I should check first? I rocked the switches and double checked the cables, etc. Thanks Rick W0RT __

Re: [Drakelist] Fw: Turner 454X microphone

I've got an original cut sheet dated Dec. 1979 on the 254HC & 454HC, but doesn't have wiring info. The difference between the two seems to be freq response, 100-8K for the 254HC vs. 300-3K for the 454HC. The generic Turner wiring booklet should cover wiring. I can scan this and send it along if you

[Drakelist] Jackson Bros drive needed

Does anyone have a junk t4 or r4 chassis that has the RF Tune or Preselector control in it? I'm looking for one of these drives for my R4 B receiver. I need the red pointer and knob also. Thanks, Thanks, Lawrence, WA4BHK ___ Drakelist mailing list

[Drakelist] Fw: Turner 454X microphone

No replies from Boatanchors so will try here. This mic came with my used TR4C many moons ago and I set it aside because the element was dead. Sure would like to have a copy of the original instruction sheet. I try to have paperwork for all my gear and accessories. 73, Dick KF4NS St Petersburg, F

[Drakelist] FS: original diode boards for L4 L4B and L7 power supplies

Fellow enthusiasts, I have for sale some new, unused, original diode boards for the Drake L4, L4B, and L7 linears. These are just the boards, NOT populated with diodes or equalizing resistors. The foil traces are already factory tinned for easy soldering. Set of two (2) boards, enough for

Re: [Drakelist] TR-4C Bias Adjustment

Richard - I just another couple of thoughts. Looking back through the million or so messages regarding this problem, I asked if the voltage across R45 'dipped' when you rotated the PLATE control, and you replied that it did NOT, rather it peaked just like the RF output, falling off on