|HW-7 REPAIR - July 12th 2014
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|Above pictured. I turned the rig over and
formed the leads to match up with the
holes in the circuit board.
Then plugged in the new U1 audio
amplifier and soldered in the circuit and
the receiver now worked!
I also tested the Dual Gate Mosfet and
tested it with my circuit and found the dual
gate mosfet to be ok.
Pictured left.. the broken 40 meter
doubler coil. I did not try to do a repair on
the coil..but rather I just replaced it
because I had a spare off my parts board.
The CA3035 is about $13.00 cost to me
plus $4 shipping..but I ordered some
more in at the same time to moderate the
To the customer I charged $16 for this
part. (They aren't cheap)! The used coil I
charged $2 Labour $15.
|SO HERE IS THE COST TO THE CUSTOMER:
To the customer I charged $16 for the CA3035 (They aren't cheap)! The used coil I charged $2 Labour $15. So total cost parts and labour $33.00
Which isnt too bad actually. The HW7 used to sell for about $99 or so up here in Canada in 1973. It was a kit that Heathkit Electronics offered.
SO THIS IS A GOOD EXAMPLE OF MY REPAIR PHILOSOPHY! - THE BIG COST OF THE PROCESS IS THE SHIPPING. It would probably cost about
$22 each way shipped in Canada or USA. (IF YOU CONTACT ME (email email@example.com) I can give you an estimate on the postage and
an estimate on the planned repair you want to do.
Another option: meet me in person at ONE OF THE OTTAWA AREA FLEA MARKETS (May in Smiths Falls or early September in CARP near Ottawa).
YOU can arrange for me to pick up a rig for repair and save at least one way in the cost of shipping.