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My Com3 does not have the diode with the 6.8 ohm resistor. The battery - goes directly to chassis ground. The 7812 regulator has 13.7 volts at the output pin. Some other variances is R176 is a fixed

This isn't VHF Chris. UHF MICOR Station PA's require 1 - 2 Watts of drive at the input port of the PA. Kevin

Harold, Thank you for replying to the thread.? For those following along - Harold and I are discussing the Sinclair Q202G and TX-RX 28-37-02A VHF duplexers, and that's different from the subject

Ok, I found the schematic you tried to send on the repeater-builder.com. That one is a fairly simple regulator schematic with the battery in parallel with the output of the reg with a 6.8 ohm in

John, Nice revision to the conversion. Another unrelated TK690 question. Does the TK690 also cover 10 and 6 in one radio? Over the past 15 years I have read conflicting information on this and I

Mike: That looks good. The big challenge in these projects is finding a case that fits what you need without too much wasted space. Gregg: Cooling seems adequate. After I made the original post I

A new battery will power the unit up and all is well. If the unit is plugged in with the power switch on it will charge the battery as it should at 13.6 volts. Id like to see 13.8 volts but thats a

So do the Sinclair cans use finger stock or something altogether different? Chuck WB2EDV

I don’t like threaded rod tuning. As a Canadian, we saw very little of those brands up here and I never had tender replies using this brands. I’ve only had some experience with the dB 4” cans

* Ok Chris, yeah I tested it with an HT a year ago briefly and that’s what came out. Didn’t realize the 500mW drive. Haven’t had any use for the PA. UHF Micors PA’s take 1 to 2 watts of

I think you mis-understood my question, let me try again. I wasn't referring to the Sinclair-style fine adjustment, I was talking about the coarse adjustment methodology used by various manufactures.

Tait is good stuff. Worked on T200, T300 and T800 (T800 was my favorite) series for ham repeaters in ZL. - Lonney

Hello Jeff, Rotating tuning is not used for extensive fine tuning. The threaded part is adjusted for height of the rod set screw to compensate for frequency and temperature compensation and then the

Ok Chris, yeah I tested it with an HT a year ago briefly and that’s what came out. Didn’t realize the 500mW drive. Haven’t had any use for the PA. if you want the PA, I can ship it out

Have you also confirmed that the battery will not power the unit? Are you measuring the voltage right across the battery terminals? If it goes that high when powered off, then it's not *really*

Humm ... Have you measured right across the battery terminals at 20V? That's definitely a defective battery now. [email protected]> wrote:

Yes, very slightly, but it's not significant unless you use the fine tuning excessively to the point of becoming so. The right way to use it is you pull the fine tuning rod out to the point where it

I run RSS 14.10.00 on my office Win11 computer directly (compatibility mode Win7) as well as in a ProxMox Win7 VM and never had any issues Ken

Yes there is no fan on the low power model...only the 100watt <Ramesh@...> wrote:

I run XP SP3 32bit using Oracle VM virtual box (free) on my Win 10 64 bit laptops... Works like a champ...my MTR2000 and older Motorola CPS runs just fine that way Chris WB5ITT [email protected]>