pdf TB 701-80 I1 - AE Type 80, Transistorized Amp (Hard of Hearing) Popular

By 1633 downloads

Download (pdf, 3.71 MB)

AECo Bulletin 701-80 - H-o-H Set.pdf

TB 701-80 I1 - AE Type 80, Transistorized Amp (Hard of Hearing)

Technical Bulletin 701-80
Issue 1, July 1958

HARD OF HEARING
TELEPHONE TYPE 80
(TRANSISTORIZED)

INSTALLATION AND ADJUSTMENTS ?

1. DESCRIPTION
The type 80 Transistorized Telephone employs a transistor amplifier in
the receiving circuit for the purpose of aiding hard of hearing
subscribers. The Type 80 Transistorized Telephone is a self contained
desk set; no separate ringer box is necessary.
The set is equipped with a volume control and a 3-conductor line cord
which terminates in a small plastic 3-conductor connecting-block. The
connecting-block accepts wiring for either bridged or divided ringing.
No soldering is required. Telephone can be used on only 48-volt systems.

2. TRANSISTOR AMPLIFIER
The Type 80 Transistorized Telephone has a printed circuit amplifier
(page 28) ; no attempt should be made to repair it in the field. Remove
the printed wire board and replace it with a new one. (Order D-35290-A
as replacement board.)

New User?

Read the articles under "Introduction" in the black menu bar above.

Recent Contributors

Thanks for new documents from Bruce Patterson, Jon Kolger, Paul Ivester, Len Hicken, Paul Fassbender, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Mark Cuccia, Alan David, Harry Joseph, Charlie Terry, Karl Brose, Dennis Hock, Tim Griffin, Remco Enthoven, and Steve Cichorsky.

Please send a file to add your name to this list!

Who's online

We have 544 guests online