*Solved Minerva Tropic Master model w117 "early"-crackle pop & no vol ****SOLVED
Posts: 184
Threads: 3
Joined: Feb 2018
City: Chesapeake VA
A resistor in the heater line should not blow, reguardless what you've disconnected on other pins. Requires a major short.
Operating, the total current draw for tube elements is roughly 70-80 ma, by far most of that is the pair of 50L6 audio outputs. The 25Z6 operating with elements in parallel can safely supply maybe 150ma, above that it's in failure mode. The purple was either a severely overloaded tube or it catastrophically failed by it's own accord.
By chance were you using the 25Z6 that was previously overloaded?
My Birdie is still in pieces, maybe one of these days.
Tom
Messages In This Thread
RE: Minerva Tropic Master model w117 "EARLY" - by 35Z5 - 06-27-2018, 04:33 PM
Users browsing this thread:
|
Recent Posts
|
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.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 |
462ron
|
It’s on the bottom of the homepage of our Philcoradio.com homepage!
Ron462ron — 07:20 AM |
Who's Online
|
There are currently no members online. |
|

|