1959 Ampex 2010 Guitar Amp | PART 1 - Unlocking the Crunch
Автор: zjokka
Загружено: 2021-08-11
Просмотров: 1634
One of the more promising #guitarampconversions - pushpull 6V6, with a #EF86 preamp and 12AU7 short tail phase inverter. It's got a very effective negative feedback tone control and a Ampex hifi speaker. Still the tube complement makes this amp has everything to be easily modded into a Tweed Deluxe, or even a Dr. #maz28
00:00 Sneak prelisten of result
00:16 Stock amp demo
03:47 Disassembly & dating
08:45 Point-to-point circuit
10:24 Negative feedback tone control
11:19 EF86 preamp tube
14:56 Killing the NFB network
15:52 Sound tests disconnected NFB
19:04 Changing the input resistance and grid leak
20:38 Removing NFB and old coupling caps
21:27 Testing the bumblebee caps
23:37 Sound test with new caps
24:40 New power tubes
25:47 Final sound test
30:02 Stock speaker inspection
30:52 Sound test with closed back 12" guitar cabinet
32:45 Mains toggle switch, speaker jack
33:22 Problem with a new tone and gain control
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