Which SUT? .... for .3mv/10 ohms MC cartridge into 3mv MM input sensitivity

hopping about, see some vintage stuff, do these transformers age well?

Denon more modern look, dc in from separate power supply 100v, I'd need a 120/100 pre-transformer.

https://www.ebay.com/itm/DENON-HA-1000-Step-up-transformer-head-amplifier-Working-Properly-F-S-d530/254589438969?epid=1040361048&hash=item3b46b68bf9:g:xqgAAOSweYBesriC

Thorens, 12v, low 22db, high 32db, bypass

https://www.ebay.com/itm/THORENS-Step-up-Transformer-PPA990-NEW-c1091/324210004828?hash=item4b7c6c135c:g:UMcAAOSwYAVefCjm&autorefresh=true

sony 3, 40, pass and front on/off

https://www.ebay.com/itm/SONY-HA-55-MC-cartridge-head-amplifier-Step-Up-Transformer-import-Japan/174120794119?hash=item288a687807:g:rckAAOSw6l1d7pT5

UTC A-11 altec switchable, 16:1 or 32:1

https://www.ebay.com/itm/133457836840

fidelity research frt-3 10 or 30. 26db or 31db, pass

https://www.ebay.com/itm/Fidelity-Research-FRT-3-Step-Up-Transformer-MC-Phono-Cartridge-USED-JAPAN-fr-64/193131068733?hash=item2cf7823d3d:g:y0cAAOSw2YpdapVv

An OLD DOG, like me, 20:1, simply vintage

https://www.ebay.com/itm/Klangfilm-Siemens-T-42-2e-step-up-transformer/133312407153?hash=item1f0a09e671:g:XU0AAOSwiaVeKCWe

Sony in-line blocks HA T10, +26db

https://www.ebay.com/itm/SONY-HA-T10-Step-Up-Transformer-MC-Moving-Coil-Phono-Cartridge-USED-JAPAN-RARE/193131071248?hash=item2cf7824710:g:pYMAAOSwLNpblKR6

Denon HA-500  24db 32db pass

https://www.ebay.com/itm/DENON-HA-500-Step-up-transformer-head-amplifier-AC100V-Free-Shipping-d1030/264728266720?hash=item3da308c7e0:g:UVQAAOSwkZleuiRY

JVC 30 ohm

https://www.ebay.com/itm/JVC-Victor-MC-T100-MC-Step-Up-Transformer/264781535201?hash=item3da63597e1:g:OJAAAOSwy~Je~Ctp

Cinemag 4 ratios:  1:9, 1:12, 1:18 and 1:36 (l or l+r?) (no pass)
1:18 on AT-33PTG/2 would be 5.4mv; 145 ohms

https://www.ebay.com/itm/Moving-Coil-Phono-Step-Up-Transformer-Cinemag-3440AH-4-Ratios-1-9-1-36-MC-SUT/193558279772?hash=item2d10f8f65c:g:pwAAAOSwdehfBJnw

I'll Make My Own

https://www.ebay.com/itm/COIL-WINDING-EQUIPMENT-MODEL-W-S-N-1171-T-440393A-w-FOOT-SWITCH-COUNTER/133247476931?hash=item1f062b24c3:g:LOkAAOSwUHld1tb9

??? Why can't they make one like this ???

https://www.ebay.com/itm/STACO-Energy-3PN1010B-Variable-Auto-Transforer/173800804939?epid=15006512759&hash=item287755d24b:g:EawAAOSwrdlcaySU:sc:FedExHomeDelivery!07062!US!-1

Empty Box ready for your 9 pin transformers of choice

https://www.ebay.com/itm/Moving-Coil-Phono-Step-Up-box-for-RCA-MI-12399-Transformers-MC-SUT-Bogen-T155-HK/193511613150?hash=item2d0e30e2de:g:05gAAOSwcTZeqOW9

same for smaller diameter transformers

https://www.ebay.com/itm/Moving-Coil-Phono-Step-Up-box-for-Sansui-A-603-9-pin-plug-in-Transformers-MCSUT/124163160221?hash=item1ce8b3789d:g:Z2EAAOSwxTZdaaw9

.............................

Finally, Maestro's Remote Controlled Variable Transformer, from the Listening Position. Two required for Stereo

https://www.ebay.com/itm/Lutron-Remote-MA-RH-Maestro-Dual-Control-Dimmer-White-NEW/303506335792?epid=1300142038&hash=item46aa632830:g:kSkAAOSwnAJeX72R

................................

Tiring, but, I had fun seeing how various companies/designers solved things over the years

jperry

thanks for that find. Now to find some money!

They seem to be the only people to put them in a wood case

https://absolutehiend.com/index.php/product/phono-mc-step-up/miyajima-lab-etr-800p-mc-step-up-transformer.html

What a complex exchange for a relatively straight forward issue.  Look up the Black Swan, fully front panel continuously adjustable loading and gain, tweak it by what I call earball, set all the variables while listening to it.

barry

thanks, I'll check it out. I get the earball thing, now that I realize what it's all about.

I've resisted even mouthing the words Moving Coil since they needed humming boosters when I was young, it is all new to me. I enjoy learning, and sharing my finds with 'imagined' others.

I'm a retired Interior Designer, specialized in Corporate Headquarters: New, Relocations, Renovations. Interior Architect  actually, as practiced in NYC, PA, Wash DC, traveled hither and thither. I became more informed bit by bit progressively for 50  years. I researched everything, designed much custom work, selecting, presenting options to my clients, ordering a gazillion things. Select and present a full line of chairs, mail room to President's office, for a new 250,000 sq ft headquarters project, it's exhausting. I was not going to tell a client 'this is the best choice', and find something 'better' that I didn't know about a week later.

Now, for myself, i.e. that Fidelity Research FR-4. It truly appeals to me, and it did not pop up in my search until after a lot of searching. No one mentioned it. New, it's features and quality, would cost ___? It's hard for me not to 'add to cart' and put this search to bed.

Demagnetizer, who loses sleep over this?

Miyajima Labs sometimes include demagnitizing built in

"When several months pass, a stepup transformer and the cartridge are magnetized.
The demagnetizer short-circuits ... "

If true, couldn’t I use my demagnetizing wand for my reel to reel decks for this?