Search found 114 matches

by Jim Sofonia
Wed Jul 12, 2017 9:04 am
Forum: FM Radio
Topic: Any opinion on MACHLETT transmitter tubes.
Replies: 6
Views: 329

Re: Any opinion on MACHLETT transmitter tubes.

Never heard of them. Where are they made, where can you get them from?
by Jim Sofonia
Sat Jul 08, 2017 3:51 pm
Forum: Everything else
Topic: Hello?
Replies: 11
Views: 451

Re: Hello?

Please keep your hands and feet inside the ride, and wait patiently for it to start!
by Jim Sofonia
Mon Jun 19, 2017 5:22 pm
Forum: Ask the Engineers
Topic: Offical AMC 8 Transition Thread (was Sat. AMC-8)
Replies: 149
Views: 7658

Re: Offical AMC 8 Transition Thread (was Sat. AMC-8)

Ummnn.. Would the crow have anything to do with your loss? :)
by Jim Sofonia
Wed Jun 14, 2017 7:59 am
Forum: AM Radio
Topic: Chain link fence
Replies: 5
Views: 409

Re: Chain link fence

We used sizable pre-fab dog pens at the base of our towers. Easy and cost effective. Tied into the ground system at four points. Never had any problems. You can always add extra grounding later as needed.
by Jim Sofonia
Mon Jun 12, 2017 1:21 pm
Forum: AM Radio
Topic: Burk ARC-16 ESI Card
Replies: 7
Views: 389

Re: Burk ARC-16 ESI Card

I had a problem similar to yours on a ESI. I found the low value resistors (10 ohms I think) right at the input to the phone line had gone high in value, probably from a surge. Check those.
by Jim Sofonia
Mon May 22, 2017 5:25 pm
Forum: Ask the Engineers
Topic: Offical AMC 8 Transition Thread (was Sat. AMC-8)
Replies: 149
Views: 7658

Re: Offical AMC 8 Transition Thread (was Sat. AMC-8)

Hi all, In helping "wtcmeng" we are still looking at a on site solution to his problem. Our latest tests suggest it may be interference from a cell site just across the road from the dish. Should we have to move to a new location, what options would we have for bringing in control as well as audio r...
by Jim Sofonia
Mon Feb 27, 2017 4:08 pm
Forum: Everything else
Topic: SEARCHING FOR CAPS
Replies: 5
Views: 403

Re: SEARCHING FOR CAPS

The older Flash Technology strobe lights use almost the same value cap. 1.0uf @ 2500 vnp. Here is one source for them, but no price listed. There are other sources for these and I have even seen new ones on Ebay. 1mf 2.5kv Night Capacitor Direct OEM replacement for the following systems: Honeywell /...
by Jim Sofonia
Fri Feb 17, 2017 10:58 am
Forum: AM Radio
Topic: Need Dip Switch settings on (/\/\) Motorola 1310
Replies: 6
Views: 606

Re: Need Dip Switch settings on (/\/\) 1310

kc8gpd wrote:
Thu Feb 16, 2017 4:22 pm
(/\/\) 1310
Huh??
by Jim Sofonia
Tue Feb 14, 2017 1:48 pm
Forum: FM Radio
Topic: Reviving a dormant antenna system
Replies: 11
Views: 744

Re: Reviving a dormant antenna system

I agree that Mark is giving the best advice engineering wise. But money wise and who isn't these days why not pressure it up, load into it and see what happens. You won't waste that much time testing it, maybe will still work.
by Jim Sofonia
Sat Feb 11, 2017 7:23 pm
Forum: Everything else
Topic: Engineers office computers
Replies: 6
Views: 513

Engineers office computers

I had a visiting engineer one time, from Harris I think, who remarked "why do all engineers have the cover permanently missing from their office PC. I dono, I guess we are just nerds! Whats is you're pc like?
by Jim Sofonia
Sat Feb 11, 2017 7:17 pm
Forum: FM Radio
Topic: FM Clock Radio with good blanketing protection recommendation
Replies: 7
Views: 594

Re: FM Clock Radio with good blanketing protection recommendation

There is no clock radio ever built that has those qualities. Get a good radio and connect a radio shack timer to it. :)
by Jim Sofonia
Wed Jan 18, 2017 11:57 am
Forum: FM Radio
Topic: How Old is Old?
Replies: 16
Views: 1406

Re: How Old is Old?

I'd agree with Kelly and replace the rigid line with heliax. Your tower crew is going to cost plenty no mater if they re-hang old line or new. In fact new line would be less crew time as they don't have to bolt all those sections together. 35 years ago when I started in this business they were build...
by Jim Sofonia
Sat Oct 22, 2016 11:12 am
Forum: FM Radio
Topic: Scala FM Antennas
Replies: 8
Views: 623

Re: Scala FM Antennas

These antennas are well built and will last many years. If you put it up mounted vertical and aim it at one market you need to cover it will be fine. If you try multiple antennas you will have a mess of coverage, I recommend not doing that. Instead buy a Nicom or other broadcast antenna designed to ...
by Jim Sofonia
Thu Oct 20, 2016 7:20 am
Forum: AM Radio
Topic: Rebuilding a Lighting Choke
Replies: 10
Views: 1108

Re:UPDATE: Rebuilding a Lighting Choke

Eric tells me he received and installed the Kintronic choke. He is pleased to report that his before and after parameters did no change. Even the mounting holes lined up making for an easy install. Thanks to all of you for helping with this problem.
by Jim Sofonia
Sat Oct 15, 2016 8:58 am
Forum: AM Radio
Topic: Utility Tower
Replies: 2
Views: 512

Re: Utility Tower

I know this is a long shot but does anyone have a copy of the original plans for a Utility Tower Type 120? Thanks in advance! Larry Milliken I contacted the company a few years ago, they were still in business and happily supplied a drawing of our 20 year old tower no charge. It would probably help...