I m working on my 45 100 and
I wonder if turning around the 8k2 that connects to v4 pin 6 makes a cleaner built.
How are the originals wired – on the pics from amparchive ,george and chris m this 8k2 resistor is connected on the tube side.
from amp archives
has there been a 45 100 with preamp filter 32uf on board or should this be a 16uf - ?
i know about the 32uf + 32uf filtering
45 100 layout question
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Re: 45 100 layout question
yes, originals had the 8k2 turned around (compared to the layout). they had 16uf on the preamp although the dickinson amp, and some 67 amps, had 32+32
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Super 100 amps: 1202-119 & 1202-84
JTM45 RS OT JTM50 JMP50 1959/2203/34/39
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Super 100 amps: 1202-119 & 1202-84
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Re: 45 100 layout question
Roe - great thank you for your helpRoe wrote:yes, originals had the 8k2 turned around (compared to the layout). they had 16uf on the preamp although the dickinson amp, and some 67 amps, had 32+32
i m building a 12xxx clone too - are the resistors(10k and 8k2 ) also turned around (compared to the layout).
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Re: 45 100 layout question
yes, that one is also turned around
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Super 100 amps: 1202-119 & 1202-84
JTM45 RS OT JTM50 JMP50 1959/2203/34/39
http://www.myspace.com/prostitutes" onclick="window.open(this.href);return false;
Super 100 amps: 1202-119 & 1202-84
JTM45 RS OT JTM50 JMP50 1959/2203/34/39
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Re: 45 100 layout question
I'm not following 'turned around' ?
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Metroamp JTM45 turned JMP50 w/Classictone OT
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Scumback Speakers
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Re: 45 100 layout question
Question was about, were the orig 45 100 or 12xxx connects the choke with the 8k2...............Big Mike wrote:I'm not following 'turned around' ?
I will connect it on the tube side of the board………on the layout the choke is connected at the potentiometer side of the board…………….