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Hi Jay, I have the same station here (T-4XC, R-4C, Shute 444). I get similar audio reports as well. ?The old technology is a pure joy to operate! -- 73s VE3MXG Matt Gervais

I've added a scanned version to the files section. Single sheet and resolution is good enough to be able to decipher the switch contacts. Steve G8GSQ

Jim, Thanks for the clarification. What you described (better) is what I took away from reading the Drake manual. The process was so quirky, it raised a flag in my head. Poking screwdrivers through

In the T-4XC I worked on there's a separate 3.3ohm resistor for the current metering. Thanks for the info. on resistors; early in my working life ( mil comms) it was drilled into me that carbon film

I have loads of nib,? carbon comp resistors,? I bought new, eons ago.... and they have all drifted to the high side, ( some as much as 30% on the high side).... just sitting in their original

You can find about of the same make and size and move the insides to the old enclosure. I have done this with several different pots. Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a

A bit late to this thread. Drake seem to use a lot of the CTS 450 series pots. I would guess the pot in the AC4 is a CTS 450 series. You could get one of these from Mouser and swap out the wafer.

I'll try that. Thanks! -- Joe - W7BWA Custer, WA

Thanks David. Only that the holes are there and I wanted to replace it with what is there as the shaft is very short. The main thing is finding a suitable replacement and Mouser seems stumped to one.

Kinda nice how spell-checker changes “pentagrid” to “pentagram”! Gary W0DVN

"Gary Follett via groups.io" <xntrick1948@...> wrote: That would be to allow operation on the Devil's Band. -- 73 -Jim NU0C

Gary, try putting the original screen resistor back and swap out tubes. It sounds like someone was chasing their tail over a gassy tube. Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a

On 12m this morning, I received a good SSB audio report from MN. I've had other good SSB audio reports. I'm using a Shure 444. My CW and SSB reception sound great as well.. maybe better sounding than

I am helping a fellow with his dead R-4C. I found the original problem, a puncture in one of the coax cables' insulation pressing against the 12 volt line, pulling it to ground. Fortunately, this

T-4XC Band switch waver positions? On the T-4XC I purchased, the waver band switch is in the wrong positions. crystal positions are fixed, the others may be wrong too! After tuning only a small

One watt is enough. Modern carbon film will do fine, they do not drift. Metal film will also do fine. I think Garry used to recommend oxide coated film. Since the drop is part of the measurement of

Carbon film will run at red heat without damage. I spent some of my wasted youth working for a resistor manufacturer. We made established reliability metal film and mil spec carbon film resistors.

In general I'd say use metal film for everything. In this case, maybe consider carbon film and don't overdo the power rating. If the resistor burns out it might just save the tube; metal film can

It is exactly as stated. The adjustment is an old school ceramic trimmer cap conveniently placed on the board in line with the key jack on the rear panel. Since you need key down CW to hear the side

Manual has has been sent. Mike, WB8VGE www.theheathkitshop.com