Search found 1376 matches

by RGORJANCE
Tue Aug 15, 2017 7:31 am
Forum: AM Radio
Topic: Gates MW-5 Problem
Replies: 7
Views: 474

Re: Gates MW-5 Problem

It has been about 25 years since I worked on an MW-5 so I am really rusty. Only thoughts are possibly the damper diode breaking down as the voltage comes up. I seem to recall replacing a coil that might have been part of the PDM filtering but can't recall the symptoms. I had one other instance that ...
by RGORJANCE
Mon Aug 14, 2017 3:41 pm
Forum: AM Radio
Topic: DX-10 Controller Probs
Replies: 9
Views: 379

Re: And the guy in the picture sits in the cubicle next to me in his current gig.

Weeeelllll! Time for a war story. Back in the day I happened to be in the area doing some DA measurements on that very station. This was waaaay back during the really big floods they had out there. As we were finishing up, I was standing in front of that very xmttr during a huge thunderstorm. A trem...
by RGORJANCE
Mon Aug 14, 2017 9:59 am
Forum: AM Radio
Topic: RCA BTA1M transmitter
Replies: 12
Views: 647

Re: RCA BTA1M transmitter

Yup! 833 's will glow red a lot longer than a 4-400. Got an RCA BTA1MX up in Sheboygan with 833's. I think I had to replace the jugs once over many years until we put the Nautel in. It has been in standby for so many years I doubt the CE has even turned it on in about 12-13 years. It might just crat...
by RGORJANCE
Mon Aug 14, 2017 7:01 am
Forum: FM Radio
Topic: 6 KW Transmitter Ballpark price
Replies: 16
Views: 875

Re: if you have a Nautel, you also get me

For his own well being and good health, keep him out of Wisconsin. Every time he visits here, he gains 10 pounds from eating kringle and bratwurst!

O&H bakery has to add additional temporary help jut to keep up with the kringle demand. :lol: :lol:

Fossil
by RGORJANCE
Fri Aug 11, 2017 6:34 am
Forum: AM Radio
Topic: Gates MW-5 Problem
Replies: 7
Views: 474

Re: Gates MW-5 Problem

I should have included lower power readings.

At 1,000 watts - these readings are with 100% mod:

IPA I 0.52
EP V 2,575
GRID I 245 ma

2,500 WATTS TPO

IPA 1 .78
EP V 3,700
GRID I 240 ma

Just spotted a note that says grid current must be 225 ma, minimum for power level.

Fossil
by RGORJANCE
Fri Aug 11, 2017 6:24 am
Forum: AM Radio
Topic: Gates MW-5 Problem
Replies: 7
Views: 474

Re: Gates MW-5 Problem

Here are some typical numbers from an MW-5A factory test data sheet. The A version included the ME-1 modulation enhancer. Xmttr color is black and blue. Earlier MW-5 was a beige grey, and did not have the ME-1. Otherwise, readings for the two should be near the same----they will vary a bit from unit...
by RGORJANCE
Thu Aug 10, 2017 2:48 pm
Forum: AM Radio
Topic: Gates MW-5 Problem
Replies: 7
Views: 474

Re: Gates MW-5 Problem

I should have read your post a bit closer.......disregard my thoughts, the trouble probably isn't where I was thinking. I will keep scratching my head for other ideas.

Fossil
by RGORJANCE
Thu Aug 10, 2017 2:44 pm
Forum: AM Radio
Topic: Gates MW-5 Problem
Replies: 7
Views: 474

Re: Gates MW-5 Problem

Can you tell us what plate voltage and plate current are running as the overloads occur, and what they are with the rig running low power? Several possibilities pop into my mind.....damper diode breaking down - possible bad cap/s in the output network - modulator tube shorting out. Been MANY years s...
by RGORJANCE
Sat Aug 05, 2017 7:45 am
Forum: AM Radio
Topic: Fun with Omnitronix
Replies: 9
Views: 852

Re: Fun with Omnitronix

Chuck: The one they stuck me with is really docile, quiet and very well behaved. It's so good sitting there, never gives me any trouble. It is a backup, and the boss said that the fan noise was so annoying that he turned the circuit breaker on the front panel off. And we don't have to feed it. Shows...
by RGORJANCE
Mon Jul 24, 2017 7:09 am
Forum: Everything else
Topic: Mounting stuff to old concrete block wall?
Replies: 18
Views: 804

Re: Sometimes electricians do strange things.

Do they really do it without shorts???? :roll:

Fossil

Another tall tale comes to mind................
by RGORJANCE
Sun Jul 23, 2017 1:13 pm
Forum: FM Radio
Topic: Burk ARC 16 Channel Detection
Replies: 2
Views: 229

Re: Burk ARC 16 Channel Detection

It will require a voltage at the metering input of each channel. You might want to take it back to the site and hook it up to the IP-8 relay panel to get a voltage sample, You should be able to recalibrate the xmttr readings. Or.....hook a 1.5V battery to the metering input on the IP-8 and see if yo...
by RGORJANCE
Thu Jul 20, 2017 10:10 am
Forum: Everything else
Topic: Mounting stuff to old concrete block wall?
Replies: 18
Views: 804

Re: Mounting stuff to old concrete block wall?

KPJL FM wrote: ↑ Thu Jul 20, 2017 8:28 am When you're all done, you'll find the dryer's cord is 6 inches to short to reach the new outlet. Or as my wife would say, I tried to add an outlet, ended up replacing the roof. With my luck, everything will fit perfectly except the plug on the end of the cor...
by RGORJANCE
Wed Jul 19, 2017 8:31 am
Forum: Everything else
Topic: You need this
Replies: 22
Views: 920

Re:my maniacal laughter

Do you realize the trouble you would have been in if that occurred at an airport? I got into a similar discussion when a sales grunt tried to sell me some very large diameter speaker cable that was terminated in 1/16" diameter pins. I get my "Monster Cable" at the electrical section at Ace Hardware....
by RGORJANCE
Tue Jul 18, 2017 7:13 am
Forum: FM Radio
Topic: Static Dissipators?
Replies: 13
Views: 741

Re: Static Dissipators?

Due to old age....here is one idea I forgot about. Waaaayyyy back when.......WTMJ AM 620 kHz in Milwaukee had a three tower in-line array. Two short towers with a tall Franklin on the North end of the array. They had a static problem which was treated with - as I recall - a 100,000 ohm non inductive...
by RGORJANCE
Wed Jul 12, 2017 9:32 am
Forum: FM Radio
Topic: Any opinion on MACHLETT transmitter tubes.
Replies: 6
Views: 327

Re: Any opinion on MACHLETT transmitter tubes.

Look before you leap, Fossil!

I thought way back then that they were a foreign company. After a quick look-see, I discovered they are a US company. Sorry for the veiled insinuation they were foreign made.

Fossil