USED, salvaged from school surplus equipment, not tested, no spec sheet.
A helpful commenter has stated that this board is "from an OLD Dictaphone model 241 dictation/transcription machine."
Listing is for one (1) each mystery circuit board 42269728300, comes exactly as shown in the photo.
Attached Components Include:
• Heat Sinks
• Trimmer 29-3 3K Ohm B
• Transformers 701600, 700100
• Capacitors Rubycon 220uF 10V, 330uF 10V, Shoel 220uF 10V
• Transistors Sanyo D313E, D325D, D325F, B511F
• Relays Omron MHU2ZP, MHU4ZP, MHU6ZP
U.S. shipping only at this time. Choose USPS Ground Advantage shipping to receive this item between Monday, April 7th and Thursday, April 10th. (Delivery times are best estimates.)