Bringing back a Dynaco PAS-2

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

Linear Mode

Bringing back a Dynaco PAS-2

Steve D
Member

Posts: 116
Threads: 25
Joined: Jul 2006
City: Lebanon, NJ 08833

10-22-2014, 09:02 AM

Seems like you have a real nice sounding system there. I also want to keep the tone controls and will probably go the same route you did with the PAS2. Luckily my front panel is in mint condition and just needs some cleaning. I am missing a knob though I believe knob kits are available.

With regards to the ST70 I am not sure whether to go the VTA route or with another upgrade and design my own constant current sources for the cathodes of the 6CA7 tubes. This will require running class A which gives lower distortion but less output power. A capacitor storage bypass could be added to allow more peak power without clipping. I'm not sure the extra effort will produce measurable listening improvements especially with my 65 year old ears! But it would be a fun project.

Thanks for the tip on the DIY Tube forum, I have just registered there as SteveBigD.

Steve D

Find

« Next Oldest | Next Newest »

Thread Closed

Messages In This Thread

Bringing back a Dynaco PAS-2 - by Joeztech - 10-20-2014, 08:54 PM

RE: Bringing back a Dynaco PAS-2 - by Steve D - 10-21-2014, 08:55 AM

RE: Bringing back a Dynaco PAS-2 - by Joeztech - 10-21-2014, 10:05 AM

RE: Bringing back a Dynaco PAS-2 - by Steve D - 10-21-2014, 01:48 PM

RE: Bringing back a Dynaco PAS-2 - by Joeztech - 10-21-2014, 09:06 PM

RE: Bringing back a Dynaco PAS-2 - by Steve D - 10-22-2014, 09:02 AM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
Philco 42-345 Restoration/Repair
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM
Philco 42-345 Restoration/Repair
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM
Philco model 38 code 121 not receiving signal.
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM
Testing a speaker and output transformer Trutone A2-G
The equivalent of one short turn is basically the same as that of a shorted load. If it is the primary's turn, then the ...morzh — 03:53 PM
Testing a speaker and output transformer Trutone A2-G
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM
Philco model 38 code 121 not receiving signal.
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM
Philco model 38 code 121 not receiving signal.
Well why not! :lol:Stormlord5500 — 03:14 PM
Philco model 38 code 121 not receiving signal.
Good luck next thing you know you will be winding coils just for the fun of it. DavidDavid — 11:29 AM
Testing a speaker and output transformer Trutone A2-G
morzh Short-circuited turns can be considered as a half-dead transformer. But on this case transformer will hot and s...Vlad95 — 11:01 AM
Testing a speaker and output transformer Trutone A2-G
I am not sure how a transformer could be weak. It could be inadequate, but only when you replace the original with somet...morzh — 09:56 AM

Who's Online

There are currently 2282 online users. [Complete List]
» 4 Member(s) | 2278 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me