Hi-Fi tube amp kit from China
Posts: 1,114
Threads: 14
Joined: Feb 2013
City: Irvington, NY
Greg, I believe the 330 uF is the second filter cap after the choke. The first filter at the rectifier cathode is the 47 uF.
It might be the two diodes are zeners to drop the voltage for the screen supply of the output tubes or B+for the 6SN7 input stage. There are two small 22 uF 450V radial caps nearby.
The filaments are run off AC directly from the power transformer.
(This post was last modified: 02-05-2017, 12:28 AM by Mondial.)
Messages In This Thread
RE: Hi-Fi tube amp kit from China - by Mondial - 02-05-2017, 12:14 AM
Users browsing this thread: 1 Guest(s)
|
|
Recent Posts
|
|
6TPZ and 5TPO Radio Help
|
| Welcome to the Phorum, R3Sons! I have very limited experience with car radios other than installing custom radios back ...GarySP — 01:08 PM |
|
462ron
|
| OK, I need to rename this thread to say..Eico 368 TV/FM Sweep Generator instead of the current title..Heathkit Sweep Gen...462ron — 12:49 PM |
|
6TPZ and 5TPO Radio Help
|
| Hello, I have a Philco (Ford) 6TPZ and a 5TPO radio. I replaced the electrolytic capacitors in both. I have the SAMS m...R3Sons — 12:29 PM |
|
The list of my radio & TV collection!
|
| Hello Peter,
Thank you for posting that !!
Sincerely Richardradiorich — 09:40 AM |
|
Eico 232 VTVM Schematic
|
| It's a microwave antenna. ?;-p?. I substituted 1N4002s off the 6.3 vac winding for the 1.5 volt battery. Uniprobe is the...RodB — 05:50 PM |
|
Eico 232 VTVM Schematic
|
| Try BAMA for a schematic.
Looks like a replacement power source for the D battery has been installed. The tube may be...Chas — 04:51 PM |
|
Eico 232 VTVM Schematic
|
| Is that a battery holder?morzh — 04:43 PM |
|
Eico 232 VTVM Schematic
|
| A friend gave me this Eico 232 VTVM and I'm having trouble locating the schematic for it. This one seems to be a later v...RodB — 04:17 PM |
|
Var resistor id
|
| Considering what it is in series with, I doubt there should be any power requirements. Of course, we should
know wher...morzh — 03:23 PM |
|
Var resistor id
|
| Trim pot, about 1/2 watt part of focus divider. As stated 2k ohms.
This appears to be a rusty chassis, resolder all ...Chas — 03:19 PM |
|
Who's Online
|
There are currently 3261 online users. [Complete List]
» 1 Member(s) | 3260 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
