When I ordered this pair of MC step up transformers from Mr. Isao Asakura of tube-amps.net (highly recommended👏) for my cousin's system, he suggested the use of high-quality 24-gauge stranded copper wire. I also took note of his MC step up page, in which he discussed his chassis mounting experiments.
Taking the cue from my buddy Nate aka Redboy at HifiHaven.com, who’s a prolific audio DIYer and MC step up builder, I ordered a cast aluminum project box + 24-gauge stranded tinned copper wire from Amazon.
Hashimoto HM-7 - specs |
Upon inserting the freshly mounted and wired HM-7 into my hifi set up, my Tamura TKS83 and Altec 4722 sounded comparatively hard and mechanical...🤔
I had to retrace my steps.
Tamura TKS83 |
In hindsight, whether commercial or DIY, all the Japanese MC step up transformers I've seen in the metal or in MJ Radio Experiment and Stereo Sound Tube Kingdom magazines, were always housed in all metal enclosures or chassis.
Altec/Peerless 15095A + 4722 |
Hashimoto HM-7 |
Hi Joseph, those look like classic Hammond 1590 diecast boxes to me. Also my preferred tools for that kind of job.
ReplyDeleteAll the best from Germany: Holger
You're right, must be the same OEM in Asia. Nice of you to drop by, Holger! Tschüss!
DeleteHey, can you please share ,what components you buy for the Hashimoto, what mounts do I buy, glad if you can share your link to the 24-guage wire too. Thanks a lot, Per
ReplyDeleteThe materials I used were generic: cast aluminum 3.5" x 6" x 2" project case + 24-gauge fine multi-strand copper wire as pictured and above. Nothing fancy and it sounded better than when I used 99.99% silver.
DeleteHi. Can you recommend a step up transformer for the Shindo spu? Thank you.
ReplyDeleteI use the Tamura TKS83 with my SPU#1s, -GM and -G. Unfortunately Tamura has discontinued this model. Assuming your Shindo SPU is electrically similar to my SPUs, you should seriously consider the Hashimoto HM-7.
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