Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

variacs
#6

I use an old Heathkit IT-1 circa 1955.  http://www.w6ze.org/Heathkit/Heathkit_018_IT1.pdf
It does isolate and is adjustable but only down to about 80v and being from the pre polarize
plug era it doesn't like them.

Easily handles any ac/dc set and is rated @ abt 200w with a break every now and then. Most
of the time with AC/DC set I'm just careful to make sure that the neutral side is at b- and couple
signals thru loops, nothing with a chassis connection. Sometimes I'll get a set with a problem
with hum modulation that's where it comes in really handy.

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry


Messages In This Thread
variacs - by Kake53 - 02-17-2021, 09:00 PM
RE: variacs - by morzh - 02-17-2021, 11:42 PM
RE: variacs - by Kake53 - 02-18-2021, 12:47 AM
RE: variacs - by 462ron - 02-18-2021, 09:48 AM
RE: variacs - by Phlogiston - 02-18-2021, 10:51 AM
RE: variacs - by Radioroslyn - 02-18-2021, 12:51 PM
RE: variacs - by morzh - 02-18-2021, 09:34 PM
RE: variacs - by TV MAN - 02-20-2021, 08:29 PM
RE: variacs - by 462ron - 02-21-2021, 11:09 AM



Users browsing this thread:
[-]
Recent Posts
Philco 42-345 Restoration/Repair
RodB :beerchug:Vlad95 — 10:22 AM
Philco 42-345 Restoration/Repair
Vlad, you nailed it. Swiss and German roots.RodB — 09:54 AM
5U4 vs 5Z4 tubes
Well this is a Hallicrafters SX/9 circa 1936. No real issues so far although I dodged a real bullet with a cap that was...bridkarl — 07:59 AM
5U4 vs 5Z4 tubes
The pinout is the same but the 5U4 has a 3 amp filament, verses 2 amps or less on the 5Z4. I think that the pinout of a ...Arran — 12:04 AM
Philco 42-345 Restoration/Repair
By the way. osanders0311 Take a look here: Dial cord stringing Guides May be here you can fount correct string settin...Vlad95 — 11:15 PM
5U4 vs 5Z4 tubes
5U4 and 5Z4 almost identical. I think nothing happened if you left 5U4 instedad 5Z4 long time. Just heater current 5U4 ...Vlad95 — 11:02 PM
Philco 42-345 Restoration/Repair
Hello Vlad95 , Very Funny ! Sincerely Richardradiorich — 11:01 PM
Philco 42-345 Restoration/Repair
RodB You are European yourself   :evil: I'm Canadian for the last 30 years  :snowman: But not Yankee  :lol: Vlad95 — 10:49 PM
Philco 42-345 Restoration/Repair
The band switch selects different oscillator coils for the band selected. I would look for a bad connection in the switc...RodB — 10:31 PM
Philco 42-345 Restoration/Repair
Hang in there...PaulPaul Philco322 — 09:30 PM

[-]
Who's Online
There are currently 1014 online users. [Complete List]
» 1 Member(s) | 1013 Guest(s)
Avatar

>