Posts: 111
Threads: 2
Joined: Nov 2016
City: marystown nl canada
(11-25-2016, 02:09 AM)Arran Wrote: Capacitor C39, a .1 mf cap, is another to check, it should be connected to a 20,000 Ohm resistor and one of the tube socket terminals, with the other end grounded. Capacitor C30 is another, it's a .01 mf cap, it's connected between the oscillator coils and a 50,000 Ohm resistor, and ground. One thing that does not help on Canadian Marconi schematics is that they do not number or label the terminals on the tube sockets, many manufacturers will mark these out with a ring of circles around the tube diagram, with a letter to indicate what element is what like "K" for cathode, "P" for plate, etc. in each circle, it's rather annoying.
Regards
Arran right what I believe to be c-39 is connected to pin4 of tube 6k7 which also has a 27 k resistor connected to it which should be the 20k resistor and the other end is connected to pin 7 of tube 6k7 which is wrong correct or not
Messages In This Thread
RE: marconi 157 - by the picker - 11-25-2016, 01:53 PM
Users browsing this thread: 1 Guest(s)
|
|
Recent Posts
|
|
under chassis parts locator diagram for 1938 Zenith 9s262
|
| Has anyone gone to the trouble of creating an under chassis parts locator image? Yes, I can identify components by foll...bobloney — 08:57 PM |
|
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
|
| Try looking at this site the book mark is for a old generator that I was given. David https://radionerds.com/index.ph...David — 08:36 PM |
|
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
|
| Hello Everyone,
I am looking for voltage identification for all the pin positions on the socket of a CRV-20130 power su...Tonym4704 — 08:16 PM |
|
Philco P45-6365 Universal Transformer Instruction Manual
|
| Can anyone guide me to where this may be found?GRG — 03:00 PM |
|
54C Complete Teardown/Rebuild
|
| I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM |
|
HiFi (Chifi) tube amp build - but my own design.
|
| It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM |
|
Philco 71 Code 125
|
| Hello,
I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM |
|
Stromberg Carlson 1500 Squeal
|
| And life just keeps getting more complicated.dconant — 07:57 AM |
|
54C Complete Teardown/Rebuild
|
| Hello Roy,
here is this one
sincerely Richardradiorich — 12:45 AM |
|
54C Complete Teardown/Rebuild
|
| Richard,
Had grabbed it already but thank you just the same. I find myself wanting to find some way to block out the...glyphmon — 12:03 AM |
|
Who's Online
|
| There are currently no members online. |
|

|