HELP! Higher Fidelity Industries HF-138 shematic

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Hello folks,
I came across this amps. To make sure its serviceable I would need the full shematic. It should indlcude the driver and output stages as well.

I am more concered about the output transistors. Which type did they use and about the availability of the parts now.

The same concerns I do have about the driver stage with the availability of parts.

Please help
Stefan
 
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This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.