SET Asylum

And these would be for a 45/2A3 in a high mid/Tweeter amp?

172.11.32.65

Chip647

In Reply to: RE: Best audiotransformers posted by Best audiotransformers on April 22, 2024 at 02:15:33

Just curious

Follow Ups:

RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? - Best audiotransformers 12:43:07 04/22/24 (2)
any other tube is possible :)
- 40mA above 800hz? - Chip647 05:25:22 04/25/24 (1)
  40mA and F => 800hz
  What is the highest working voltage?
  - RE: 40mA above 800hz? - Best audiotransformers 08:22:20 04/25/24 (0)
    The transformers frequency response is flat at 800Hz, 40mA is the dc current.
    I did not tested the maximum dc voltage but i can test up to several kV if needed, for now at least 600V. For better phase response the design is made from 400Hz and up.
RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? - thermionic addictions 10:14:34 04/22/24 (7)
They will go in 801A/eimac75tl amps driving a pair of front loaded horns.
- RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? - Chip647 06:11:57 04/26/24 (6)
  What operating point would you be running the 75tl?
  - RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? - thermionic addictions 12:12:01 04/26/24 (5)
    Around 600V @ 40mA
    - RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? - Chip647 08:31:38 04/29/24 (4)
      0.04 * 600 = 24 watts (75 watt max for he 75tl)
      
      With the 75tl you could consider doubling the plate voltage to 1200 volts. As it is, running a 75tl at 1/3 dissipation is way down in the curves. The tube will have less distortion if you can bring up its operating point and it will make more that the 6 to 8 watts this operating point will give you.
      
      I know there is the whole "cheap 300b" operating point for the 75tl, but these tubes are getting more rare and a JJ 300b is cheaper than the Eimac now. I do understand the fun of using the Eimac tubes, having both a 304tl amp and a 35t amp in operation at the present (both in the +Kilovolt range).
      - RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? - tube wrangler 23:05:33 08/20/24 (1)
        
        In Reply to: RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? posted by Chip647 on April 29, 2024 at 08:31:38
        
        Is your 35T SE or push-pull?
        
        Do you have a schematic of it?
        
        The 35T is very symmetrical and should sound really good.
        
        How to handle the high amp-factor is the question.
        
        Thanks! -Dennis-
        
        RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? - Best audiotransformers 11:50:08 08/22/24 (0)
        
        In Reply to: RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? posted by tube wrangler on August 20, 2024 at 23:05:33
        
        '
        
        Edits: 08/23/24
      - RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? - Best audiotransformers 12:34:01 05/11/24 (1)
        
        In Reply to: RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? posted by Chip647 on April 29, 2024 at 08:31:38
        
        '
        
        Edits: 05/11/24 05/15/24 05/15/24 05/15/24 05/19/24
        
        are you offering to sell transformers? - Tre' 07:35:06 05/15/24 (0)
        
        In Reply to: RE: And these would be for a 45/2A3 in a high mid/Tweeter amp? posted by Best audiotransformers on May 11, 2024 at 12:34:01
        
        That's what the Audio Asylum Trader is for.
        
        No selling in the forums.
        
        Tre'
        Have Fun and Enjoy the Music
        "Still Working the Problem"
        https://www.audioasylumtrader.com/ca/index.html (Open in New Window)

Post a Followup:

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.

This post is made possible by the generous support of people like you and our sponsors:

Sonic Craft