UK Vintage Radio Repair and Restoration Discussion Forum

UK Vintage Radio Repair and Restoration Discussion Forum (https://www.vintage-radio.net/forum/index.php)
-   Sets, Parts and Service Information Wanted (private buyers only, no swaps) (https://www.vintage-radio.net/forum/forumdisplay.php?f=28)
-   -   Lowe HF SP-150/AP-150 (https://www.vintage-radio.net/forum/showthread.php?t=178705)

kimbottles 8th Apr 2021 9:08 pm

Lowe HF SP-150/AP-150
 
I am searching for a clear copy of the SP-150 (AP-150) circuit diagram. All I can find on the Internet is a fuzzy copy where I cannot read the component values. I am trying to repair an AP-150 where everything works except the S meter. Hard to trace things out without a readable circuit diagram. Thanks! Kim - K7IM Blakely Harbor, WA, USA

Julesomega 8th Apr 2021 9:50 pm

Re: Lowe HF SP-150/AP-150
 
Sorry I can't help Kim: I suppose you've tried on https://groups.io/g/LoweHFReceivers?

kimbottles 9th Apr 2021 11:38 pm

Re: Lowe HF SP-150/AP-150
 
After I posted the request I found a fairly readable one on that website, so yes, now we have a decent copy and am making progress. Looks like Diode D-4 is toasted, having a new 1N914 coming from Amazon today, should be able to switch it out later today. Thanks!!

Julesomega 10th Apr 2021 11:19 pm

Re: Lowe HF SP-150/AP-150
 
Just for the record, here is the reply Kim had from the group:

The AP-150 was simply a name change to the SP-150 for marketing reasons (snip) the schematics are available in the files section


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