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Modular Amps
Egnater / Randall Modular Amps
new tube/fuse problems with my RM50 Lynch Box - UPDATE/FIX
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<blockquote data-quote="kc2eeb" data-source="post: 73991" data-attributes="member: 811"><p>If the resistors don't look burned they're probably ok. (You can check them with a multimeter. I think they should read 1K (1000) ohms.</p><p>What you have to look closely at is the solder joints of each resistor.</p><p>One end of each resistor is connected to the plate voltage supply, around 500 volts, and each other end to the screen grid of each tube.</p><p>The trace for one tube is on top of the board, and the other is under the board..</p><p>The one on top is the one you need to look at. If it's ok you should see solder on it. If the lead is just going in the hole with no solder, that's a problem. It will have intermittent contact.</p></blockquote><p></p>
[QUOTE="kc2eeb, post: 73991, member: 811"] If the resistors don't look burned they're probably ok. (You can check them with a multimeter. I think they should read 1K (1000) ohms. What you have to look closely at is the solder joints of each resistor. One end of each resistor is connected to the plate voltage supply, around 500 volts, and each other end to the screen grid of each tube. The trace for one tube is on top of the board, and the other is under the board.. The one on top is the one you need to look at. If it's ok you should see solder on it. If the lead is just going in the hole with no solder, that's a problem. It will have intermittent contact. [/QUOTE]
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Modular Amps
Egnater / Randall Modular Amps
new tube/fuse problems with my RM50 Lynch Box - UPDATE/FIX
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