wrote:
Some here may know that I operate the Part-15 compliant AM & FM transmitters for the Kutztown Radio Meet. Given that vintage TVs are becoming more prevalent at the show, I would also like to operate a small VHF television transmitter featuring vintage movies and such. I see lots of stuff out there for UHF, nothing that specifically lists VHF, other than DIY stuff, for which I have neither the time nor inclination given I do not collect any sort of TV stuff.

Kit or ready-made - any suggestions? Remember, I am in the USA.

Blonder Tongue and Holland agile or fixed channel modulators sell cheap
on Ebay. They put out enough RF that you may not need a power amplifier.
I've bought them for $15 plus shipping. R.L. Drake also built them.
Pico, Microdyne and others built them for MATV headends and they are all
are basically obsolete since 2009. RCA, Scientific Atlanta and Phasecom
built them for CATV headends. These sold new for thousands, but there is
little to no marlr them.

Some can also put out their Aural carrier on the old 49 MHz FM band.
You would need a trap to kill the video carrier.

There are lots of five for $30 on Ebay, right now. They are without
the power supply, rack and combiner, but you only need power for one of
them. I don't know what channels they have left, but the seller is
E-cyclePro. They often have these items.



http://www.ebay.com/usr/e-cyclepro

https://www.ebay.com/itm/283848841569 has one on Ch9 for $27

Holland-HPM55-Audio-Video-Modulator-Tested-Commercial

If you want to drive multiple lines, there are sometimes one in, 16 out
broadband distribution amplifiers for under $50. With the high output
level of a MATV modulator you could use a four way splitter, each split
four ways to drive up to 16 TVs without an amplifier. That would require
running a lot of RG59/6/11 coax. With the amplifier you could scatter a
few antennas around and use rabbit ears on the TVs with a lot less coax.

I have a new, in the box Tradewind Rack Mounted Distribution Amplifier
for $35, but i don't think that you really need it.



--
Never **** off an Engineer!

They don't get mad.

They don't get even.

They go for over unity! ;-)