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

using 12AU7 on 34
#16

Marty

It would probably benefit you to read a simple explanation of how Class A/B/AB amp works. Then you'll know the relation of that DC to AC and why. Trust me it is not that complicated.
Also makes sense to familiarize yourself with the principles of the passives including transformers. It always helps to understand what is going on.
#17

Hi All;
I have download a number of good old books and have started to go thru them.. I also got in my Tubes, Yesterday.. My chassis is got two coats of Primer paint and two coats of its final color, and will get two coats of Clear coat, before this weekend is done.. If I do say so myself, it looks real nice, now.. Then I can start re-wiring, section by section.. Starting with the Output Amplifier and the two Transformers..
THANK YOU Marty
#18

No such thing as a reliable capacitor cheks for vintage stuff, voltage load not. Pretty much same for carbon resitors. Guilty until prove innocent applies only here.
#19

Hi All;
I am not sure specificially what Codefox is refering to, from my last post.. But, I have most of the Caps and Resistors that are needed for this Radio, this week, I will see where I stand, and If I have enough funds to get anything that I don't have as of yet.. Then I can start the re-building process..
THANK YOU Marty




Users browsing this thread:
[-]
Recent Posts
Philco model #20
Hello again fellows , well I powered up the set this evening after I had changed every cap and resistor in this set and ...onlyrick — 09:34 PM
Zenith H725
Yes - better it happened on the repair bench than returning to the owner. The other question is - do I also dissect a...EdHolland — 09:08 PM
Zenith H725
That's a bummer but get them now. Paul BPaul Philco322 — 08:27 PM
Zenith H725
I completed the insulation on the cabinet interior (Al foil and hi temp silicone rubber), and reglued the speaker gasket...EdHolland — 06:18 PM
HiFi (Chifi) tube amp build - but my own design.
Tim - Photos of 8 octal tube sockets. (Top and bottom) Send me a PM if you're interested.RodB — 04:11 PM
VTVM meter moves when my hand is next to it & not on
Haha! I hope so. It seemed rather lost and forgotten languishing in the frozen Northeast of England.EdHolland — 02:36 PM
VTVM meter moves when my hand is next to it & not on
Ed - it's in the Cayman's enjoying the good life.RodB — 02:14 PM
VTVM meter moves when my hand is next to it & not on
Static electricity - but the other chaps beat me to it again. I've seen this before with analogue meters. I've also ...EdHolland — 01:56 PM
Need to purchase some accessories for restoration of my Old Philco Radio
Hi Paulo, Welcome to the Philco Phorum. I can see why you want to find good reproduction parts. That is a bea...MrFixr55 — 11:10 PM
HiFi (Chifi) tube amp build - but my own design.
Tim, I have some bakelite sockets in my work shop that I can dig up. I believe quite a few are NOS. I will take photo...RodB — 10:03 PM

[-]
Who's Online
There are currently 1201 online users. [Complete List]
» 6 Member(s) | 1195 Guest(s)
AvatarAvatarAvatarAvatar
AvatarAvatar

>