Can you help me find this Instrument? - Page 1
Forum section: electronics / testgear

author: sneily
author_rank: Contributor
timestamp: October 02, 2024, 01:47:42 am
content: 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.

author: BillyO
author_rank: Super Contributor
timestamp: October 02, 2024, 02:35:30 am
content: 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.

author: coromonadalix
author_rank: Super Contributor
timestamp: October 02, 2024, 09:13:21 am
content: i think it's a re-branded productsimilarities with leader 823 based on the same ic but vfd screen / displayi 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 prescaleri understand your need, be careful, dont play in it ... your have hard to find parts, use anti static garnments ...

author: squadchannel
author_rank: Frequent Contributor
timestamp: October 02, 2024, 09:32:09 am
content: Quote from: coromonadalix on October 02, 2024, 09:13:21 amIt 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

author: coromonadalix
author_rank: Super Contributor
timestamp: October 02, 2024, 09:37:18 am
content: they redirect to Kikusui docs no schematics .... as of now, maybe some float around ...

author: sneily
author_rank: Contributor
timestamp: October 02, 2024, 05:13:28 pm
content: WOW Squadchannel! You found it! This FC-882A is it. The faceplate has the exact same display and controls. Every button is the same function as my Triplett 7700. The only visible difference is in the printing on the faceplate.So, now I know my baby's parents. And I know approximate age.I appreciate everyone's input. You have been very helpful.So, Yes it is clearly a rebranded product which also explains the lack of awareness by the Triplett Engineering group.It is not my primary Counter. I purchased it from ebay primarily for it's size. My HP 5334A is what I use, but it is very large with a permanent place on the bench. This Triplett is rugged and small enough to easily travel.Cheers to you all.

author: sneily
author_rank: Contributor
timestamp: October 02, 2024, 11:54:48 pm
content: Just for fun,,,Here is the Yokogawa branded same SOAR product.