BPR40: no voltage on collector of PA

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arlojanis
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Joined: Mon Jan 28, 2002 4:00 pm

BPR40: no voltage on collector of PA

Post by arlojanis »

I have a VHF BPR40 Mag One with intermittant no voltage on collector of power amp transistor. Has anyone repaired one like this before? Does anyone have a schematic or board drawings?
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Andreas
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Joined: Sun Sep 09, 2001 4:00 pm
What radios do you own?: radios

Re: BPR40: no voltage on collector of PA

Post by Andreas »

I have the schematic.
Your problem with the radio, must be the Drain coil or R417!
If the radio is completely dead,you may have a problem with the battery or the contacts.

Andreas
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arlojanis
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Re: BPR40: no voltage on collector of PA

Post by arlojanis »

Receiver and transmitter low level stages work OK. The final transistor is dead because there is no voltage on the collector. Can you share the schematic?
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