We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

« previous next »
Pages: [1]

Author Topic: Ramsey CT-70 Frequency Counter Manual / Schematic Wanted  (Read 1868 times)

Offline ChrisSmolinski

  • Administrator
  • Marconi Class DXer
  • *****
  • Posts: 32456
    • Westminster, MD USA
    • View Profile
    • Black Cat Systems
Ramsey CT-70 Frequency Counter Manual / Schematic Wanted
« on: June 20, 2022, 2102 UTC »
Looking for a scan of the manual, or at least the schematic for the Ramsey CT-70 frequency counter.

Thanks!
Logged
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline ThaDood

  • DX Legend
  • ******
  • Posts: 1368
    • Likely, not where you are.
    • View Profile
    • Extreme Part #15!
    • Email
Re: Ramsey CT-70 Frequency Counter Manual / Schematic Wanted?
« Reply #1 on: June 21, 2022, 1803 UTC »
I don't have for the CT-70, but I was requested for the manual to my CT-125 FREQ Counter. And, that one can be found here.  https://archive.org/details/ramseyct125frequencycountermanual3281989  Now, is that similar to the CT-70? That, I don't know. 
Logged
“I am often asked how radio works. Well, you see, wire telegraphy
is like a very long cat. You yank his tail in New York and he
meows in Los Angeles. Do you understand this? Now, radio is
exactly the same, except that there is no cat.”
-Attributed to Albert Einstein, but I ripped it from the latest Splatter .PDF March 2025 issue.

Offline ChrisSmolinski

  • Administrator
  • Marconi Class DXer
  • *****
  • Posts: 32456
    • Westminster, MD USA
    • View Profile
    • Black Cat Systems
Re: Ramsey CT-70 Frequency Counter Manual / Schematic Wanted
« Reply #2 on: June 21, 2022, 2111 UTC »
Thanks for the link, it looks like a rather different model.
Logged
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline RobRich

  • DX Legend
  • ******
  • Posts: 2099
    • Tampa, FL USA
    • View Profile
Re: Ramsey CT-70 Frequency Counter Manual / Schematic Wanted
« Reply #3 on: June 21, 2022, 2217 UTC »
I suspect you have already seen it, but Vintage Manuals Inc. has a CT-70 manual listed. It is priced at $26, though. o.0
Logged
Tampa, FL USA | US Map Grid EL88
My Public Receivers: KiwiSDR 2 | Web-888 SDR
Airspy HF+ Discovery | 2x Msi2500 Msi001 | 2x RTL-SDR V3 + NE602 | 2x RTL-SDR V4
148' + 60' Loops-on-Ground | 30' Inverted Delta Loop | 31' Vertical | 18' End-Fed Vertical
Pages: [1]
« previous next »
 

HFUnderground Mug
HFUnderground Mug
by MitchellTimeDesigns