connectors. HRO gets $35 for the Kenwood power connector ! -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.co
I have often wondered why TT didn't put an active current limiter into their final amp circuits. It really isn't that difficult to do. Wonder if a magntic breaker is really fast enough to open befor
while internal -- Disconnect the Omni. Take the cover off the 962. Find the transformer. Verify 120 vac at transfomer primary verify 18~ 20 vac rms at secondary verify ~ 20 vdc at the huge electroly
Thermal shock is highly sucessful for isolating bad connections. I've used cans of freeze spray ( RadioTrash sells them ) for locating bad connections due to cold solder joints. Twenty years ago I ha
Hey Bob ! I use an Astron SS-25 to operate my Corsair II and a SS-18 to power my Scout. Both are excellent performers, typical load regulation is 50 mv for a load step form 1 to 18 amps ( 22A on the
To: <tentec@contesting.com> Being in the habit of grounding everything I was curious as to why Ten tec didnt put a ground post on the 25amp switching supply. -- Larry OM - - The photos shown by TT of
<< Sounds to me as if the Scout has a 7810 or LM340-10 regulator for the VFO. That regulator needs about 2.5 volts headroom input to output to maintain regulation. Very likely the TO-92 version 78L10
<< I wonder if a Jones P402 plug would fit the back of the Tentec radios without too much chopping ? >> The Cannon D connectors so widespread in the computer subculture these days make superb power c
<< Actually, the Scout does have an LM2940-10 regulator for the PTO, which should have adequate headroom. The regulator should be good down to 11 volts .... >> Perhaps it would be feasible to install
Hey Bill -- The reason you are having low output from your TT 705 desk microphone is due to a design flaw in its bias circuit. The Primo EM-60 ( EM-100 in the 1201 kit ) electret cartridge used in th
Wonder if anyone can detail the subtle differences between the TT 961 and 962 PS ? -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions: tentec@contesting.com Administrative requests: tent
Gentlemen : After two months as a CII owner, I finally decided to try my hand at CW operation; having heard such marvelous reports of the CII being the consumate world class CW rig .... So I plug in
Gentlemen : In the stock Corsair II, position 3 on the Xtal switch selects the standard 2.4 khz filter... On filter board 80979 there is a small jumper wire that keeps the 2.4 khz filter in-line when
The VOX/PTT switch is a SPST switch that connects / disconnects the collector of an NPN transistor to pin 3 of the mic connector. Switching to VOX position, this line is opened, disabling the PTT sig
After completing my TT 1201 Desk Mic kit, I experienced abismally low audio output -- not enough to drive my Corsair II, and not enough to drive my Scout, even with their mic gain pots at max. Turns
<< Have you checked the voltage to the mic from your Corsair 2 ? I think the 201 manual says that the Corsair-2 is supposed to work fine with the mic, but it might be worth a simple voltage check any
<< Subj: Re: [TenTec] Design flaws in the TT 1201 Desk Mic..... To: <tentec@contesting.com> Steve OM -- TT does not specify the manufacturer of the electret element supplied in the 1201 T-kit. Howeve
Hey Jim -- Perhaps a can of freeze spray would be useful to modulate the failure mode .... I have found that thermal shock is a most efficient method for isolating bad connections, cold solder joints
<< Ahh, the 47 ohm resistor looks like a short to the electret element. Current is not an issue, polarization voltage is an issue. Also, impedance is an issue. The original 10K provides a much higher
<< Subj: Design flaws in the TT 1201 Desk Mic..... To: <tentec@contesting.com> Date: 00-09-14 02:33:43 EDT From: jwl@telus.net (JWL) To: KF6ZZ@aol.com Phil: Here is what I found. Mic Bias (Measured v