roundie yoke help - Videokarma.org TV - Video

DaveWM · #1 08-10-2010, 04:39 PM

can you guys that have a roundie handy check the resistance of the horz with a reg DMM. the horz (blue/red).

I have one yoke that reads 10.5 and the replacement reads 6.6, a big diff in resistance, yet they are both 12mh (horz) impedence.

I just am curious why such a big diff and what others have. The 10.5 is the orig, the 6.6 is the triad replacement.

the sams calls out for 10.5 resistance.

ctc17 · #2 08-10-2010, 06:30 PM

The replacement probably has thicker wire. DC resistance is a kinda pointless measurement, if the AC reactance is the same it should work fine.

miniman82 · #3 08-10-2010, 07:46 PM

The one from my CTC-9 reads 6.5, and it works perfectly.

old_tv_nut · #4 08-10-2010, 08:36 PM

CTC-5 (red and red/black) measures 6.8 ohms.

DaveWM · #5 08-10-2010, 09:15 PM

ok sounds good, guess philco just cheaped out or something. it was a late model roundie.

bgadow · #6 08-13-2010, 08:48 PM

When I was looking up info for somebody else on a Philco roundie I noticed that the Thordarson/Merit replacements required that you make some change or another-I think a resistor had to be added or subtracted. Not sure why.

DaveWM · #7 08-13-2010, 09:09 PM

yes its in the vert circuit, need to clip out a couple resistors in side the yoke cover.