Need help identifying baldwin tube amp

[jack57]

Can anyone help identify this amp? Seller believes its from Baldwin. Has (2) 6L6GB, (1) 5U4GB,
(1) 12AU7, (1) 12AX7. Power xfrmr 343 PF-583. Output xfrmr 343 AO-26 (8?). Works great, hoping to convert to guitar amp. Thanks.

 

[jack57]

Its a Gulbranson APS-5

EL34world has a good thread on converting this to a guitar amp.

 

[scrimpu]

That looks quite similar to my Gulbransen APS-15 and other Gulbransen amps I have seen. You can dump that selenium recto as it was only used to power the transistor organ and not the amp.