[GreenKeys] PK-232

[Jeffrey Golas]

I would suspect the pot/knob on the front. I had one there it fell not very far onto carpet, and pot broke. Easy fix!

Jeff

> On Sep 23, 2026, at 9:32 PM, John Lawson via GreenKeys <greenkeys at mailman.qth.net> wrote:
> 
> 
> Greetz Keith!
>  
> I’ve had maybe a dozen of them over the years; I bought serial number 79 from Henry Radio in LA in the 80’s – the 1st 100 or so were made in Washington before AEA switched production to Asia (Hong Kong IIRC).
>  
> Here is the Manual,  the schematics, parts layout, and parts list is at the back of it.
>  
> Hope you can make some headway with one of them…
>  
> Cheers
> John KB6SCO
> Carson City NV
>  
> From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> On Behalf Of Keith Densmore via GreenKeys
> Sent: Wednesday, September 23, 2026 10:15 AM
> To: Greenkeys <greenkeys at mailman.qth.net>
> Subject: [GreenKeys] PK-232
>  
> Greetings All,
> I have the (mis)fortune of owning 4 AEA PK232  modems, all now unworking.  I use them to convert 45 baud baudot into ASCII for my 1980's terminal.
>  
> All four have similar symptoms--they communicate ok to the ASCII terminal but are no longer able to read or process the audio tones from ITTTY. 
>  
> Just wondering if any member has experience servicing these devils. Perhaps there is a common mode of failure somewhere in the audio chain. Or am I looking at replacing all the electrolytics? Thanks for any advice.
>  
> Keith ve3gem
>  
> <AEA_PK-232MBX_user.pdf>
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