I am finally wiring up the Princeton Ab1164 with vary bias and dual bias with a dual intensity pot, adjustable NFB, Mid control, switchable inputs for tele and humbuckers. Brownface with tweed cabinet. 2 10's paper cones, 1.51 15 watts each. One is ribbed and the other is smooth. Deluxe Blackface PT and Mercury OT Deluxe with multi-tap. I can send this baby to a separate cab with 2 12's silver bell and blue pups and I have 2 12" small cabs I made from some of the blond tolex doug discounted. I have a Celestian v-30, 15 ohms in one and a 4 ohm Celestian alnico blue in the other.
I told you I was going crazy on this build. I hope it all works out. I have planned a lot, but I know if I get in trouble, yu felllers will give me a hand. I still gotta wire it up. but all that is left is the tonestack.
BTW, I am using 7c5 with amphenol sockets. I got some Bugle Boys for it. Well not new, but NOS.
Oh I forgot, I have a switchable Rectifier. I made one of those that has 6 diodes and 6 resisters and 6 caps. I have got to figure out the correct resistor to keep the B+ voltage the same as it is Bias Vary Tremolo. That is the easy part. The hard part is getting that MV Steve posted and the dual bias working. I think I understand it tho.
The SS rectifier should give me the country spank on call and I am trying a 39K input at V1, but I have a switch for 68K as well. This thing has stuff all over it. From the front it looks like a brownface in a tweed cabinet.
This is the first amp where I built the chassis and cab. Like I have said before, I was a machinist before becoming a Graphic Designer. Metal is no problem. I just cannot believe my finger joints came out so well and everything fits.
Thanks for asking as you can tell, I am a little excited.
Topic: NFB Question on Multi-tap OT (Read 2518 times)