Can anyone tell me what these are?

looks like a combination of antenna rotor controls and UHF converters.

The one on the extreme right looks like a Blonder Tongue Model 99 UHF converter.

Next question - trash?

Pretty much unless you like collecting them. They resemble radios so some people like to collect them as they acquire them. Can't really use them for much of anything anymore.

Can't tell you how many times I've seen a UHF converter on Craigslist that some idiot, oops, some not knowledgeable person... , was selling as a radio.

I've seen UHF converters in antique malls being advertised as radios too.

Don't trash them ... post them on Ebay.

Here's one like I have in my collection:
http://www.ebay.com/itm/180829009226?ss ... 1438.l2649

Carl

That's sad - even I knew they were not radios.

The third one from the left is an Alliance VHF "booster" (preamplifier); my Dad had one.

the UHF converters can still be used with a multi-room satellite setup (Such as those that DISH has, as their secondary output modulators can be set to output in the UHF bands)

If you have pre 1964 VHF only TVs that you use with an analog cable feed as their signal source; then you can use the UHF converters to grab some more channels (VCRs do a better job getting more channels than a converter though).

If you have an early top loading VCR with a very strong modulator you could experiment with that VHF booster on the left to see if it can boost the signal enough to transmit (Probably won't work but I have been itching to try that idea with some of my gear).

Tom C.

Thanks all.

Tom, I don't know a UHF form a VHF. These items are in my fathers stuff that I have recently started going through. He owned a radio and tv repair shop in the late 50's/early 60's and I believe kept everything.

I have a post going over under radios with lots more information (lots of parts...need help) Some of that is mix and match radio and tv because I can't always tell them apart. I knew these had some thing to do with a tv so I tried to post in the correct location.

I appreciate everyone's help. I have tons of stuff and I'm just trying to not trash anything that people might want (already tossed a bunch before finding this site).

VHF is channels 2 through 13. UHF is channels 14 and up. Early TVs only received VHF. A UHF converter allowed you to add the UHF channels to an old TV.

Can you expound a bit? Although I think my DISH unit can only be set for channel 3 or 4 for the analog output, what benefit would one of these units be? If my DISH unit could indeed be set to modulate in the UHF range, wouldn't the only purpose of the converter be do modulate back down to channel 3 or 4?

Maybe set the dish device to output to, lets say, channel 31, and then adjust the converters to that channel!

Some of their multi-room receivers have secondary outputs that function in either the cable channels, or on the UHF band (as is the case with my ViP622 DVR, which outputs on UHF channels 52/60 for whole house usage).

Read the manual that came with your receiver. It should tell you if yours is capable of functioning in this way.


Another use for these, is if (like me), you own a UHF microtransmitter (known as a "AV Sender" that doesn't require any special receivers). These usually transmit their signals on UHF channels 14-26. Hook a loop to the converter, and it can receive this signal. (Somewhere around here I also have a UHF modulator)

A better look at the dial on that Alliance unit shows it to be a rotor control; they made a booster which looks identical to it, except for the dial.