Matamp Slave Unit SL120

[CJ]

this guy just came in on consignment,

 

[CJ]

1978

 

[CJ]

working on this style of chassis is a breeze, 4 bolts and it can sit upside down without squashing tubes,

 

[CJ]

nice wiring, ITT and Erie caps,

 

[CJ]

first crack at the schemo,

built for 110, so unhealthy voltages

 

[CJ]

output transformer tests,

very good control of peaks and phase shifts

 

[CJ]

OPT sq wave coming out of the secondary,

 

[CJ]

i believe these transformers were made in house at Matamp,

here is a site with some history>

https://www.matamp.com/mat-mathias.html

 

[CJ]

and this, Happy Holidays!