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#1
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Rockola 1422 O-Amp problem
I have recapped my O amp on my 1422.
The 5U4 tube has a lot of sparking inside the tube. I have tried other 5U4's, and the same thing happens, even without the other tubes, and no input/output plugs (I jumped the ac on the speaker receptacle.) I have tried double and triple checking, but I cannot find a problem. Does anyone have any suggestions on where to look? Thanks |
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#2
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Rockola 1422 O-Amp problem
On 2017/08/13 11:14 AM, ILikeValves wrote:
I have recapped my O amp on my 1422. The 5U4 tube has a lot of sparking inside the tube. I have tried other 5U4's, and the same thing happens, even without the other tubes, and no input/output plugs (I jumped the ac on the speaker receptacle.) I have tried double and triple checking, but I cannot find a problem. Does anyone have any suggestions on where to look? Thanks Short on output of 5U4 filament output B+ load - a bad cap, etc. You will destroy the transformer if you do not find the problem! John :-#(# -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 (604)872-5757 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
#3
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Rockola 1422 O-Amp problem
On Sunday, August 13, 2017 at 11:14:38 AM UTC-7, ILikeValves wrote:
I have recapped my O amp on my 1422. The 5U4 tube has a lot of sparking inside the tube. I have tried other 5U4's, and the same thing happens, even without the other tubes, and no input/output plugs (I jumped the ac on the speaker receptacle.) I have tried double and triple checking, but I cannot find a problem. Does anyone have any suggestions on where to look? Thanks Will Look at that, and prob start to disconnect leads. Tnx |
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