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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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Thread Tools |
3rd May 2017, 5:44 pm | #1 |
Nonode
Join Date: Mar 2008
Location: Aberdeen, UK.
Posts: 2,839
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DONG KWANG Freq. Counter FC-2200H
Does anyone know anything about this 5.5" x 1" x 3.5" diddy wee Freq. Counter please ?
I've just been given it. Supposed to have a range of 2KHz to 220MHz. It needs +12V un Regulated and +5V Reg, & Gnd, seemingly. Regards, David |
9th May 2017, 4:25 pm | #3 |
Nonode
Join Date: Mar 2008
Location: Aberdeen, UK.
Posts: 2,839
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Re: DONG KWANG Freq. Counter FC-2200H
Well - this wee counter has found a permanent & useful home on my bench. Apart from the on/off push button on the left, it has another three function push buttons on the right :- "HF -455KHz", "HF", & VHF.
Pressing the -455 button obviously being used when determining an LO frequency. (Providing, of course, that a commonly used IF of 455KHz is being used in a particular set under test). So its now connected permanently to the o/p of my AVO AWO which I generally use for basic radio work. Its amazingly jolly stable frequency-wise for such an old item. Pictures show the AWO putting out 456KHz, then the diff. of 10 KHz being shown when the button is pressed. Supply for the Dong Kwang is taken from the nearby 12/24V DC workshop supply(rigged as a boats supply with up to 50A/24V from a Sailor 1000 Series PSU/ Battery Supply). Regards, David |
21st May 2017, 10:15 am | #4 |
Nonode
Join Date: Mar 2008
Location: Aberdeen, UK.
Posts: 2,839
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Re: DONG KWANG Freq. Counter FC-2200H
Acquired the wee instruction booklet at last. David
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21st May 2017, 10:38 am | #5 |
Heptode
Join Date: Jun 2010
Location: Zurich, Switzerland
Posts: 538
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Re: DONG KWANG Freq. Counter FC-2200H
Fine that you got it!
David, Can you scan/post only the schematics with better readibilty please? Thanks in advance. Regards Karl |
21st May 2017, 11:42 am | #6 |
Nonode
Join Date: Mar 2008
Location: Aberdeen, UK.
Posts: 2,839
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Re: DONG KWANG Freq. Counter FC-2200H
Will try again Karl. David
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21st May 2017, 2:06 pm | #7 |
Heptode
Join Date: Jun 2010
Location: Zurich, Switzerland
Posts: 538
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Re: DONG KWANG Freq. Counter FC-2200H
Thank you David!
Have nice time _ Karl |
21st May 2017, 2:29 pm | #8 |
Guest
Posts: n/a
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Re: DONG KWANG Freq. Counter FC-2200H
One of those (oh too rare these days) simple, pretty, does what it says on the tin bits of test gear. Love it!
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