Products > Test Equipment
Can you help me find this Instrument?
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sneily:
I have a Triplett model 7700 frequency counter.
It is new in box. See pics attached.
Curiously, I can find ZERO info on the web for this instrument. No pictures, no documentation.
I reached out to Triplett Corporation Engineering and they only have the Operation Manual which I already have as it came in the box.
The internal IC chips have date codes from 1985.
It is very well made and accurately measures 10Mhz.

I am reaching out to this community in hopes someone has some knowledge about this particular Triplett branded product.

My real interest has been in obtaining a schematic. But now I am simply curious to know if anyone in this world has memory of this counter. As for now, it seems it is one of a kind!

Let me know if you have knowledge to share regarding this model 7700 Triplett Frequency Counter.





BillyO:
Nice unit.  I hope you find the schematic, but unfortunately I can't be of any help.

It reminds me a lot of the Data Precision instruments.  Maybe the actual manufacturer is the same.  I have a DP 5845 counter (a little older than yours) and I can't find any information about it either.  :-//
coromonadalix:
i think  it's a re-branded product ???

similarities with leader 823   based on the same ic  but vfd screen / display

i searched a lot    but   leader 822 823 824  models does come out often,  but  others popular Hz counters where based on Intersil chip ...Samsung Goldstar ...


attached   11C91 prescaler


i understand your need, be careful,  dont play in it   ...  your have hard to find parts,  use anti static garnments ...  :-+
squadchannel:

--- Quote from: coromonadalix on October 02, 2024, 09:13:21 am ---i think  it's a re-branded product ???

similarities with leader 823   based on the same ic

--- End quote ---

It is close. :-+
It would be SOAR FC-882A.

The original product was SOAR FC-882, which seems to have been rebadged and supplied to yokogawa same name.
SOAR went bankrupt in 1988.
http://cooltune.s28.xrea.com/counter.htm


coromonadalix:
they redirect to Kikusui docs    no schematics .... as of now, maybe some float around ...
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