Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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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 connector, but that was for the speaker connection for the TR-3/4. Not needing that for my T-4X I moved it over to the VOX relay pin.

Also true that the VERY early AC-3s had a filter choke in the LV supply. But I don't think there were that many of those sold. I've only seen ONE aside from the one on your photo pages!

One other detail is that the AC-4 has a metal cover over the top of the chassis, while the AC-3 was open.

73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
<http://www.k4oah.com>



Ron Baker wrote:

"Ron Baker" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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The only real difference, the AC4 included the XMTR AGC & the VOX Relay
connectors mounted to the chassis, the AC3 did not have either one on the
chassis, electrically the rest was the same.
Ron




chuck grandgent wrote:

chuck grandgent <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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OK, simple question.
In 25 words or less, what's the diff between AC3 and AC4 ?
I've seen schematics, is the AC4 just a slightly more progressive design ?

Thanx,
 Chuck, K1OM
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