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

5Y3 question
#6

Hi,
I thought some of those SS replacements available had other components inside to give a 'soft-start- just as a tube would?
( http://www.webervst.com/ccap.html)

Yes, replacing the 5Y3 with just a couple of diodes you'd get more B+ and you'd have to adjust that,(again, heat dissapation from a resistor) and you still have the instant B+ which a standard tube does not give right away.

Personally, I'd leave the tube in as designed.
As far as your fan, that's up to you. I would have the fan pulling the warm air out, instead of blowing on the tubes. Pulling the ai out might give a better overall airflow to the whole chassis. Remember though, you have to have a source of incoming air.


Messages In This Thread
5Y3 question - by shaler78 - 05-07-2013, 10:35 PM
RE: 5Y3 question - by BrendaAnnD - 05-07-2013, 10:52 PM
RE: 5Y3 question - by morzh - 05-07-2013, 10:52 PM
RE: 5Y3 question - by Mondial - 05-07-2013, 10:57 PM
RE: 5Y3 question - by shaler78 - 05-07-2013, 11:33 PM
RE: 5Y3 question - by gary rabbitt - 05-14-2013, 08:30 PM
RE: 5Y3 question - by codefox1 - 05-16-2013, 01:31 PM
RE: 5Y3 question - by morzh - 05-16-2013, 02:09 PM
RE: 5Y3 question - by shaler78 - 05-16-2013, 07:40 PM
RE: 5Y3 question - by gary rabbitt - 05-17-2013, 12:00 AM
RE: 5Y3 question - by shaler78 - 05-17-2013, 12:14 AM
RE: 5Y3 question - by BrendaAnnD - 05-17-2013, 12:29 AM
RE: 5Y3 question - by Arran - 05-17-2013, 01:11 AM
RE: 5Y3 question - by BrendaAnnD - 05-17-2013, 02:25 AM
RE: 5Y3 question - by Marsupial - 05-17-2013, 10:13 AM
RE: 5Y3 question - by codefox1 - 05-17-2013, 01:15 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 42-345 Restoration/Repair
So far still no broadcast, I am posting pictures of #14 Oscillator and also a resistor #27 which connects to an XXL tube...osanders0311 — 04:02 PM
Part numbers to model cross
I believe there is that document, and I think we might have it in the Library.morzh — 03:29 PM
Philco 42-345 Restoration/Repair
Ok MrFixr55,  I have tried the DeoxIT D5 on the band switch and even though it has relieved the tension I felt when turn...osanders0311 — 11:11 AM
Part numbers to model cross
Is there a reference somewhere where you can punch in Philco part numbers and see what models those parts were used in?Jim Dutridge — 10:17 AM
Philco 42-345 Restoration/Repair
Hi OSanders, Look carefully at the band switch. Turn it slowly and "wiggle" it around the desired band. ...MrFixr55 — 12:33 AM
5U4 vs 5Z4 tubes
I think that RCA and GE introduced metal tubes in the USA in 1936.  I don't know if they were being made by RCA, GE or b...MrFixr55 — 11:20 PM
Philco 42-345 Restoration/Repair
Vlad95, Thank you for the stringing guides and wow there are so manyosanders0311 — 06:01 PM
5U4 vs 5Z4 tubes
A pre war Hallicrafters, and an early one too, very nice! 1936 is pretty early for metal tubes too, which would explain ...Arran — 05:58 PM
Philco 42-345 Restoration/Repair
Thanks Rod, "When you hear the background hiss and no station it usually indicates that the oscillator quit" ...osanders0311 — 05:52 PM
Philco 42-345 Restoration/Repair
RodB :beerchug:Vlad95 — 10:22 AM

[-]
Who's Online
There are currently 1211 online users. [Complete List]
» 1 Member(s) | 1210 Guest(s)
Avatar

>