Ampex AG440 Playback EQ daughter board
These boards plug into the Playback amplifiers in the electronics package of Ampex AG440 and AG445 recorders.
Ampex Assembly Number: 4020270-01
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These boards have 4 pots accessable through the front cover of the electronics module and provide both Hi frequency and Low frequency equalization at both speeds. This version (-01 suffix) is used in Reproduce Electronics for 15/7.5 IPS machines.
There are 4 of these boards available, all old original Ampex stock. The price listed is each.