[Drake] Drake TR-7 Help

[L D Ritta]

Hello Everyone

I need some help with my Drake TR-7 the mixer in the up converter U401 
cm1-hf double balanced mixer.
What can I use as a replacement and has someone got some decent pictures of 
the pcb for the up converter
and for the second mixer. I need to do some repairs and don't have any pcb 
pictures only a circuit.
BTW I find replacing the internal fuse a real pain in the neck. Does anyone 
have 4 pin socket for the DR7 board which goes to a transistor mounted on 
the back of the PA module.
Can anyone help?


73 Lee VK5ZNA 



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