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Re: 2-NT T/R relay delay
I was running into more problems this afternoon on the 2NT. Relay was not releasing. Checked the voltage to ensure the cutoff was happening. Slightly lifting on the arm stretched it back into the
By Joe KI5O · #75689 ·
Re: 2NT side tone quality
Easy fix, the ballasts on my garage florescent fixtures were creating hash. Turned off the lights and great tone. Joe ki5o
By Joe KI5O · #75688 ·
Re: DRAKE TECHNICAL NET 7.238 UPDATE
It looks like my T-4X still needs work (or its cable does). We had company, so I bowed out. 73, Steve Wedge, W1ES/4 Time flies like an arrow. Fruit flies like a banana. Sent from [Proton
By Steve Wedge, W1ES/4 · #75687 ·
DRAKE TECHNICAL NET 7.238 UPDATE
Today Evan, K9SQG was the NCS for today's net.? He had 37 check-ins. The net always starts at 4PM Eastern on 7.238 +/- QRM. The band was in really good condition. The following radios were used?:
By Mark - WB0IQK · #75686 ·
2NT side tone quality
Good day, Moving further ahead towards completion of getting this novice station back in line. No that the delay potentiometer is sorted, I'm now focused on the side tone. Setup is 2NT, 2C, 2BQ, HA-5
By Joe KI5O · #75685 ·
Re: 2-NT T/R relay delay
Bob thank you for the help on this. The potentiometer arrived today and the delay adjustment is working perfectly. Joe ki5o
By Joe KI5O · #75684 ·
Re: Drake W4 wattmeter part three
Yeah, there were some surplus Motorola repeater rack meters floating around eBay for a while that were almost the correct Jewell version but were more sensitive. I bought one, added an external shunt,
By Jim Shorney · #75683 ·
Re: Drake W4 wattmeter part three
*** I can easily imagine somebody scoring a nice meter and just sticking it in. Once upon a time... ...As a preteen in San Francisco, I attended an after school electronics program known as "Lux
By jerry-KF6VB · #75682 ·
Re: W4 has 1N34A available for it.
I was going to buy some Fluke test meter leads from Amazon. After reading the reviews, it was apparent the leads Amazon was selling were fake Chinese junk. mike wb8vge
By mike bryce · #75681 ·
Re: Drake W4 wattmeter part three
Gang, Before I celebrate too much, I have a couple more W4 meters that have the opposite problem¡ªtoo much deflection¡ªcan¡¯t set the calibration If I apply 100W, the meter begs, and if you switch
By mike bryce · #75680 ·
Re: Drake W4 wattmeter woes and some success
*** I did that too! I worked in the instrument shop at GTE Lenkurt. Mostly I did repairs, but calibration was never far from our minds. We piped 10Mhz all over the plant to feed the various
By jerry-KF6VB · #75679 ·
Re: W4 has 1N34A available for it.
Frank Barnes writes: And the odds are close to 100% that none of those are actual 1N34s. Amazon semiconductors are almost guaranteed to be fakes. Don't Do It. --lyndon
By Lyndon VE7TFX <lyndon@...> · #75678 ·
Re: W4 has 1N34A available for it.
I purchased 1N34As on eBay and didn¡¯t figure they were actually silicon diodes until after the boards were stuffed and flow soldered. Rob, NC0B
By Rob Sherwood · #75677 ·
Re: W4 has 1N34A available for it.
*** I bought a baggie of cheap IRF510's from a discount house. When I wired them into an amp, they wouldn't take the quiescent. When I approached it - turning up the bias - they would just run away
By jerry-KF6VB · #75676 ·
Re: W4 has 1N34A available for it.
*** Reviews on one of the 1N34 listings say that they are silicon Hot Carrier Diodes. One can find 1N34A's that are believably authentic on Ebay. - Jerry
By jerry-KF6VB · #75675 ·
Re: W4 has 1N34A available for it.
Passives mostly seem OK, but I only purchase semiconductors through industrial suppliers where there¡¯s accountability in the chain of custody between time of manufacture and point of sale. I
By Paul Christensen · #75674 ·
Re: Drake W4 wattmeter woes and some success
Thanks for? telling up the repair. People put too much into the wattmeter numbers.? I just think that if any of the broad range wattmeters are with in about 10% that is good enough.? If I am
By Ralph Mowery · #75673 ·
Re: W4 has 1N34A available for it.
One has to be very careful about buying electronic parts from Amazon. Lots of counterfeit stuff here. mike wb8vge
By mike bryce · #75672 ·
Re: Drake W4 wattmeter woes and some success
Gang¡­ An update on the W4 wattmeter. The one with the low readings and the inability to set the meter calibration has been fixed! The problem? Capacitor C5 showed about 3k¦¸ of resistance! Replaced
By mike bryce · #75671 ·
Re: Drake W4 wattmeter woes...
Sounds like a plan¡­ many thanks. Mike, WB8VGE www.theheathkitshop.com
By Mike Bryce · #75670 ·