RE: [drakelist] AC3 vs AC4 ?

"W7RY" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- The measuring point is not in the bias line. It is actually in the plate supply line. You cannot measure plate current, (idling current is adjusted by the bias

RE: [drakelist] cleaning copper

Yeah, I agree. There are a lot of factors involved. I mentioned in my first post when speculating why my SW-54 is in such better shape that it could be where the rigs were kept all these hears, regional factors, how the chassis was treated before plating, and lots of other things. I suspect t

Re: [drakelist] AC3 vs AC4 ?

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Ron / Jason - The resistor is 5 ohms @ 2W, so should read 0.5 VDC for the recommended 0.1A idle current. The plate meter "should" also read 0.1A. A

Re: [drakelist] AC3 vs AC4 ?

Ron Wagner <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Jason, I am not sure what you mean about measuring below the chassis. - I couldn't make heads or tails of the TP-1 reading with the jumper screw removed.

[drakelist] Roofing filter R7 TR7

F3WT <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Hi all: A question for a 25WPM reply!..Hi! Does you or anybody know what the in/out impedance of that 48,05MHz roofing filter is? The slope factor of both

[drakelist] AC-3

Greetings all and happy New Year. Just for information, I have an AC-3, serial 114XX which I purrchased new. It has a bias pot on the main part of the chassis between the small can and the tranny. I never knew of anything different until these threads mentioned it. 73, John,  W4AWM

Re: [drakelist] AC3 vs AC4 ?

"Don and Diana Cunningham" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Who set the 25 word limit, Garey?? Hi Hi. I, for one, enjoy reading what you and others have to share with us on many topics and learn

RE: [drakelist] cleaning copper

"EricJ" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Possibly. Obviously, it is not possible to seal up the rig. My reasoning was that the inside of the rig is going to be close to dead air when the rig is cold a

RE: [drakelist] cleaning copper

[EMAIL PROTECTED] made an utterance to the drakelist gang -- On Tue, 3 Jan 2006, EricJ wrote: > "EricJ" <[EMAIL PROTECTED]> made an utterance to the drakelist gang > ---

Re: [drakelist] AC3 vs AC4 ?

[EMAIL PROTECTED] made an utterance to the drakelist gang -- On Wed, 4 Jan 2006, Ron Wagner wrote: > One big difference is that the AC3 has a set of resistors in the bias > line. Those resistors are jumper shorted out normally w

Re: [drakelist] AC3 vs AC4 ?

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Ron - Absolutely. I don't think I ever used the jumper method once the power supply was installed in the speaker cabinet though... :-) Yeah, I thin

Re: [drakelist] AC3 vs AC4 ?

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- 73, Garey - K4OAH Atlanta Drake C-Line Service Manual Ron Wagner wrote: Ron Wagner <[EMAIL PROTECTED]> made an utterance

Re: [drakelist] AC3 vs AC4 ?

Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Ron - That's true I recall adding RCA jack "pigtails" to the connectors for my very early T-4X / AC-3 pair. The AC-3 had a pigtail out of it's

[drakelist] R-4C Calibrator Signal Level

"dmartin" <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- Curious to me why the calibrator signal in my R-4C is consistently and immediately 20 dB greater when the Drake-supplied antenna jumper cable connecting it

Re: [drakelist] AC3 vs AC4 ?

Ron Wagner <[EMAIL PROTECTED]> made an utterance to the drakelist gang -- One big difference is that the AC3 has a set of resistors in the bias line. Those resistors are jumper shorted out normally with a small screw. Lifting