TV modulator mod?

[jhalphen]

Hi to all,
Hi Electronic M,

Thanks! for the additional info about Blonder-Tongue models.

Broadcast antenna:
Here are Phil Nelson's info to build a VHF Ch2 to Ch13 dipole :
https://www.antiqueradio.org/art/VHF...oleLengths.jpg

Main article about home TV broadcasting :
https://www.antiqueradio.org/HomeTVTransmitter.htm

Thanks! Phil.

BT AM60 Series: i have the user manuals but no schematics.
BTW, anyone have access to them?

Remember reading the AM60 internal power supply uses a + and - 15VDC rail*.
In Lu Raichu's project, it would be easier to provide +/_ 15VDC from batteries rather than batteries + 120VAC inverter + reconvert to DC.

*filter capacitors needed replacement as BT units were on 24/7/365 in cable TV headends.

Best Regards
jhalphen
Paris/France