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Diesel , are you looking at the Monitor radio model M-510 ? Because the rider's shows it using a 1U4 for an IF amp , and this radio does indeed use a 1U4 in that position . I see that a 2.2meg is used as control grid bias for the 3Q4 and see a 1/4 watt in that position , but I still am looking for a 2.2 meg 2 watt in the schematic (In the pictures I posted in my last post you can see the 2.2 meg 2 wat that they installed , but there is only one 2.2 meg 1/4 watt listed on the schematic and it is present between the 3Q4's control grid and ground)
Last edited by init4fun; 02-23-2018 at 07:07 PM. |
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The radio I'm referring to is an RCA 66BX. It's kind of hard to read the writing on the invoice regarding the make. |
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Spending that kind of money on the el-cheapo make was insane. |
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The shop never filled in the make or model info , the "model no." line having been left blank . In the "complaint" line was written "monitor portable radio" so I can see where it would be easy to mistake actually which model radio was being serviced . And yes , that was a crazy amount to spend on such a cheaply made set . Hopefully sometime today I'll get the time to test the tubes that were replaced and taped into the battery compartment to see just how may of them are "shorted" . I suspect that outside of the gassy 3Q4 they'll all test fine (The tubes the shop installed are all still working , the radio receives WBZ AM 1030 fine) . |
Audiokarma |
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