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

Grunow 654
#25

(07-05-2015, 10:51 PM)vecher Wrote:  I did check the tubes. All were Good.  However when checking them against schematic I noticed that I have a 6K6G in the place of a 6F6G. I believe it is a direct replacement but how it affects the voltage   No clue..

I lowered the input voltage to 117 volts. The B+ now reads + 330 volts using a VTVM.. The bias reads -.68 volts..  Radio still works great.. So I guess its good for now..  I guess I will put it back in cabinet and back to living room..

Thanks all

Skip...

Skip;
  I think that we have found the answer as to why the B+ voltage is higher, lower current output tube. Find either a 6F6 or a 6V6 to replace the 6K6G, the 6K6G is not a direct replacement, the plate and screen current is lower then the 6F6 or the 6V6, and the heater current is also lower, the plate impedance is also wrong.
Regards
Arran


Messages In This Thread
Grunow 654 - by vecher - 06-22-2015, 12:36 AM
RE: Grunow 654 - by Arran - 06-22-2015, 03:13 AM
RE: Grunow 654 - by Radioroslyn - 06-22-2015, 07:03 AM
RE: Grunow 654 - by vecher - 06-22-2015, 06:38 PM
RE: Grunow 654 - by vecher - 06-22-2015, 10:35 PM
RE: Grunow 654 - by Arran - 06-23-2015, 01:26 AM
RE: Grunow 654 - by Warren - 06-22-2015, 11:46 PM
RE: Grunow 654 - by jerryhawthorne - 06-23-2015, 12:17 AM
RE: Grunow 654 - by mikethedruid - 06-23-2015, 12:55 AM
RE: Grunow 654 - by vecher - 06-23-2015, 09:51 AM
RE: Grunow 654 - by vecher - 06-23-2015, 08:18 PM
RE: Grunow 654 - by Arran - 06-24-2015, 12:57 AM
RE: Grunow 654 - by codefox1 - 06-24-2015, 08:17 AM
RE: Grunow 654 - by vecher - 06-24-2015, 03:23 PM
RE: Grunow 654 - by Arran - 06-25-2015, 01:45 AM
RE: Grunow 654 - by jerryhawthorne - 06-24-2015, 03:50 PM
RE: Grunow 654 - by vecher - 06-24-2015, 04:14 PM
RE: Grunow 654 - by vecher - 06-26-2015, 04:57 PM
RE: Grunow 654 - by vecher - 07-04-2015, 04:52 PM
RE: Grunow 654 - by Radioroslyn - 07-04-2015, 05:58 PM
RE: Grunow 654 - by vecher - 07-04-2015, 08:57 PM
RE: Grunow 654 - by vecher - 07-04-2015, 11:37 PM
RE: Grunow 654 - by Arran - 07-05-2015, 02:12 AM
RE: Grunow 654 - by vecher - 07-05-2015, 10:51 PM
RE: Grunow 654 - by Arran - 07-06-2015, 03:06 AM
RE: Grunow 654 - by vecher - 07-06-2015, 10:05 AM



Users browsing this thread:
[-]
Recent Posts
The list of my radio & TV collection!
A little light Saturday positive about our hobby in our feed... My new every Saturday video about antique radio equipme...RadioSvit — 02:12 PM
Model 70 Cabinet Trim
musar , Well if you have any more questions feel free to post away . Sincerely Richardradiorich — 08:56 PM
Model 70 Cabinet Trim
Although I have not made any cabinets or cabinet parts for a couple of years, I still have some parts left over, includi...Steve Davis — 06:26 PM
philcorepairbench.com - shadow-meter
Thanks Ron. But I can't find those articles.fenbach — 02:43 PM
Model 70 Cabinet Trim
Thank you, Gary. Before making my original post, I had clicked on "Steve Davis Cabinets" only to find that it...musar — 02:25 PM
philco predicta
Welcome to the Phorum, cgl18! I am not your resource for television repair, but lots of friendly help is available here...GarySP — 02:12 PM
Model 70 Cabinet Trim
Welcome to the Phorum, musar! You can send Steve Davis a private message (PM). The site is at the top of the Home page...GarySP — 02:09 PM
Model 70 Cabinet Trim
How do I contact him? The only contact information for him I could find when searching online was a telephone number th...musar — 10:38 AM
philco predicta
Hello, good afternoon, I would like to ask what the possible problem could be if I don't have an image on the screen. I ...cgl18 — 10:19 AM
Philco model 38 code 121 not receiving signal.
So one last question before I finish this radio. Regarding the speaker and output transformer. I salvaged the original o...Stormlord5500 — 09:31 AM

[-]
Who's Online
There are currently 827 online users. [Complete List]
» 1 Member(s) | 826 Guest(s)
Avatar

>