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Chirp Chirp Chirp, geez. [email protected]> wrote:

Thank you for the suggestion.? The radio was working and done.? It then just the next day all the sudden had the carrier.? The trimmer was in fact bad and according to Walt's guide, this is common.

Hi Folks, In the process of restoring a SR2K. In receive when I rotate the load control an oscillation / Chrip is heard on the speaker. This condition occur with or without HV. Thoughts Welcome, dave

Hi Folks, In the process of restoring a SR2K. In receive when I rotate the load control an oscillation / Chrip is heard on the speaker. This condition occur with or without HV. Thoughts Welcome, dave

This may be irrelevant to the SR-2000, I am not familiar with it. I had a similar problem with a Drake T4XB, couldn't null the carrier. I found, after considerable waste motion, the problem was

I cleaned and tightened everything including the bracket. No change. I drilled the rivets and removed the old Trimmer. It was bad. It reads nothing on my LCR. New trimmer reads 4 to 26 pf.? Rated at

My planned fix for this is to add an analog filter between the mic and the rig to roll off aggressively above 3 Khz.? Improving it at RF level would involve far more work where cooking up an active

Use an attenuator (-10 or -20db) if the signal is too large. The emphasis is on peaking the signal to a maximum level, rather than adjusting to 1 volt PP.I'd use a banana to BNC adapter with a 50 ohm

This makes sense. A friend has the 32A, I have listed and watched its signal for years on scope. It's always been super wide and always had some buckshot. I assumed it was modified. C

It does not make a material impact on the transmitted bandwidth in my testing.? I certainly would be interested to see if someone else has looked at the transmit bandwidth on their units.? Maybe

CR2 is the passband filter. Its adjustment is C121. Walt Cates, WD0GOF https://wd0gof.com/Hallicrafters A majority of acceptance is not proof of correctness.

This is the probe I am using

Drew I am coming straight out of the IG5282 into the IF. Using an alligator clip to tap at pin one on T1 and the other to chassis ground.

I do have a RF probe. One that I made plus one that is a manufactured version. I am changing the connection on my VTVM from the 1/4 inch jack to a bnc this evening. That will help also. The commercial

That's true Walt.? But if you sweep these filters, they don't provide passband attenuation on the transmitted sideband.? They do a fine job on the carrier and the opposite sideband, but don't do

The 32 actually has 3 filters CR2, FL1 and FL2 [cid:ae9544c5-6c02-4452-b49a-d494f6225549] [cid:251a5965-ccbb-4b54-9b47-75f0dde711ca] Walt Cates, WD0GOF https://wd0gof.com/Hallicrafters A majority of

Thanks Jim. I will check that. I fail to see how this could make a trimmer cap not work. There is a carrier on both side bands of about 2w. I can kick the Carrier osc around and null the carrier which

Hi Dave, I'm fairly certain the capacitor is not the problem.? The rivets holding the function switch have loosened or oxidized from switching.? There is one black wire to ground that was to protect

The HT-32 has no BPF in the classic sense.? Just some L/C type providing a pretty gentle roll off. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com

The Drake TR-4 came with 2.1 kHz filters.? I replaced them in mine with the aftermarket Inrad 2.5kHz filters. Not only do I get much better reports on the air but the receive fidelity is a LOT easier