Model 90 (45 p-p)

Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Rating:

0 Vote(s) - 0 Average
1
2
3
4
5

Linear Mode

Model 90 (45 p-p)

morzh
Odobenus rosmarus

Posts: 16,188
Threads: 562
Joined: Oct 2011
City: Jackson State, Province, Country: NJ

05-15-2024, 10:14 PM

So it is 0.175 times 9K, which is 1.6K.
You want around 8K-9K.

3W would be sufficient for your power for the transformer.
125B Hammond is sufficient electrically.
If you find out the size and the distance between the holes is closer to 125C, use that one. I think I used 125C for K speaker.
You want to use 2 & 3 leads for the Voice coil; this at 0.7 Ohm will give you 9K, which is about what you need.
Though 3 & 4 will also work.

https://www.hammfg.com/electronics/trans.../125a-125e

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.

Find

« Next Oldest | Next Newest »

Messages In This Thread

Model 90 (45 p-p) - by TimG - 05-15-2024, 05:04 PM

RE: Model 90 (45 p-p) - by morzh - 05-15-2024, 07:23 PM

RE: Model 90 (45 p-p) - by TimG - 05-15-2024, 09:05 PM

RE: Model 90 (45 p-p) - by morzh - 05-15-2024, 10:14 PM

RE: Model 90 (45 p-p) - by TimG - 05-15-2024, 11:40 PM

View a Printable Version

Users browsing this thread: 2 Guest(s)

Recent Posts
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
Var resistor id
Its a Sylvania 400 oscilloscope. here is a clip of r-100. Would be nice to know the current required. Not listed in part...Martinj — 02:10 PM
The list of my radio & TV collection!
Thanks Richard. I hope you enjoy it. Here I have created an English section on the history of radio with videos in Engl...RadioSvit — 10:23 AM
The list of my radio & TV collection!
Hello RadioSvit, first all happy new year ! I will watch your new videos this week. Sincerely Richardradiorich — 09:19 AM

Who's Online

There are currently 3479 online users. [Complete List]
» 2 Member(s) | 3477 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me