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Does anyone have the set up settings for testing? a 6JB6 with a Knight Kit Tube tester? Their roll chart doesn't list one. Thanks? ?WA8SDF

I need the following component values for the L 7 amplifier. ?The values are not on the schematic, and I have no parts list. 1. ?C43, C46, and C47, each air variable capacitor range. 2. ?Inductance

As far as the scarcity of the small connector from the power strip to the C-4: Not my area of expertise, but I would think something like that would be reproducible with a 3-D printer. Anyone with

I’m pretty sure that they all came with one switched 240V duplex receptacle. I have used mine for 35 years — I’ve owned it for far longer than the original owner, as I found some 1970 date codes

Tom: Congratulations on getting the C-4.? It's a nice addition to the 4-line station.? I find that the stations accessories that Drake offered with the 4-line and the 7-line is a big part of what

I too have a C-4. It’s without the power strip of course. I’m never going to use it so if someone is interested contact me at W5SUM at Comcast dot net. Ron W5SUM

interesting topic as I just acquired? a C4 last weekend. Looks great lined up with the twins but not sure how much I'd use anything but the watt meter and clock.? ? ? ? ? ? ? ? ? ? ? ? ?

Something I've been considering. FOr me, though, I don't use speech processing very much. Steve Wedge, W1ES/4 Time flies like an arrow. Fruit flies like a banana. Sent with

Noble radio makes one for the TR7 and has the one for the C Line 85% done. NRV7 and NRV4 if I recall. Sent via the Samsung GALAXY S? 5, an AT&T 4G LTE smartphone

How about a radio/computer interface for digital modes? Bill AE8EA

Hide a SP75 in there. ? 73s

Hello Ten Tec had a NB board that was a optional on the Scout . Have seen it used in a R4C . Worked better than stock but not great. Have also seen R4B with tx filters installed it worked but didn’t

Hello, fellow Drakesters! Some of you are aware that the C-4 console has a phone patch section. Obviously, very few have used a phone patch in the last 25 years and so that whole section sits —

Just one but please don't go looking for them just yet. I have an ancient VTVM (made by TIC - Technology Instrument Corporation) that used a 6AL5 for the HV rectifier. Due to the HV value, they

BTW, the ones I had looked a little bit like the one shown about 1/3 of the way down this page: https://www.surplussales.com/Tube-Sockets/TubeSkts-2.html Those only have a single hole to solder

How many do you need? I have a few but need to find them. Gary W0DVN

Sent from my Galaxy

Anyone know of a source for miniature 7-pin tube bases? I'm looking for the type that has a way to solder components to the top side and has the pins to insert into a 7-pin miniature socket. I think I

I'm thinking the problem is with T3/ switch contacts/ associated components.? The switch is clean but will check rotor contact.? Then I'm thinking of pulling v8, leaving d14 disconnected and with

Since all filtering is at 50KHz...? and 50KHz is nearly just high audio... I wonder is an audio filter could be modified to work at 50KHz.? Inject it before the AVC and it could be a modern rig...