My Very First Ever Build AA764 Vibro Champ. (Cab is here)
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Re: My Very First Ever Build AA764 Vibro Champ. (Cab is here)
I believe 100ohm is the standard value for heater ground reference, not 1 ohm.
Wife: How many amps do you need?
Me: Just one more...
Me: Just one more...
Re: My Very First Ever Build AA764 Vibro Champ. (Cab is here)
Thanks that was a typo.
Corrected now.
Corrected now.
Tom
Don't let that smoke out!
Don't let that smoke out!
Re: My Very First Ever Build AA764 Vibro Champ. (Cab is here)
So connecting pin 9 on the 12AX7 to the heater wire on pin 7 (With the 100Ohm resistor) on the 6V6 just grounds the 12AX7 then?
Re: My Very First Ever Build AA764 Vibro Champ. (Cab is here)
The heaters on the 6V6 are on pins 2 & 7
So you have the wires going to pins (4 & 5) & 9 on the 12ax7 the to pins 2 & 7 on the 6v6.
They don't typically draw the heater wires on layouts because it gets too messy.
It is much better to run two wires to each tube then the old style of grounding one side.
Make sure the same wire goes to each tube, as in, the same wire should go to pins 4 & 5 of each preamp tube to keep the phasing correct and have less hum.
So you have the wires going to pins (4 & 5) & 9 on the 12ax7 the to pins 2 & 7 on the 6v6.
They don't typically draw the heater wires on layouts because it gets too messy.
It is much better to run two wires to each tube then the old style of grounding one side.
Make sure the same wire goes to each tube, as in, the same wire should go to pins 4 & 5 of each preamp tube to keep the phasing correct and have less hum.
Last edited by Structo on Wed Dec 09, 2009 11:13 pm, edited 1 time in total.
Tom
Don't let that smoke out!
Don't let that smoke out!
Re: My Very First Ever Build AA764 Vibro Champ. (Cab is here)
Yes that's the way I have it wired. I got pin 2 on the 6v6 wired to pin 4 & 5 on the 12ax7 and pin 7 on the 6v6 wired to pin 9 on the 6v6.Structo wrote:The heaters on the 6V6 are on pins 2 & 7
So you have the wires going to pins (4 & 5) & 9 on the 12ax7 the to pins 2 & 7 on the 6v6.
So I guess the reason my tube blew up must have been something else. It was actually the Vibrato tube that blew up.