My Transformer Page

[tony]

i think Edrel is busy house building.....

isolation transformers are employed in order to avoid shocks and humming if you are having those issues on your set-up....otherwise, we are already using isolation transformers in our gears.....remember the 5 tube am radios of days long gone? that is an example of a gear without isolation transformer....very dangerous looking back.......

[edrel sison]

220 to 100V, 1200VA auto type
0.35RM18 cores, 1 1/2 X 5 inches core area
dual line breaker, IEC inlet, dual 3 phrong outlets
in mango wood base & aluminum footing

[edrel sison]

haven't had posted in a long while. i believe i had already replied to muypogi's queries. and brady, could be case to case basis re: isolations. if you can hear an improvement and it can isolate some audible noise why not? otherwise i will stick to plugging my equipment directly to the power source, i like it this way.

sometime ago tony had posted a power conditioner circuit that can be coupled to an isolation transformer. tony had built one i believe, he might be able to comment with the advantages of plugging equipment into it. tony thanks for the rescue, been busy with the kid and work..

[brady]

thanks tony and edrel. i was just curious. i've been reading the adverts for commercial AC filter gears. heheheh

[edrel sison]

why don't we try it out brady, what do you think?

[tony]

thanks tony and edrel. i was just curious. i've been reading the adverts for commercial AC filter gears. heheheh

well, you know these adverts, they are made with one objective only, that is to make you part with your hard earned cash....if you are not having issues with the power in your location, then you don't need one....

[muypogi]

Just to share. . .

Hot off the factory in Cavite: my very own 750KVA step down transformer for a little project of mine. Very nice quality and very very heavy. . .







I didn't realize na may "new transformer smell" din pala yung AT&S transformers, just like a new car. . . .

[narayan]

Nice work . Looks like this will see duty hooked to a japan domestic model audio gear

[edrel sison]

thank you muypogi. i hope to hear from you once you have tried out your new gadget.. nice meeting you over..

[teamdriver]

220 to 100V, 1200VA auto type
0.35RM18 cores, 1 1/2 X 5 inches core area
dual line breaker, IEC inlet, dual 3 phrong outlets
in mango wood base & aluminum footing

Parang mono block amp! Galeng!!pede ba ma home audition yan.

[edrel sison]

[Gino]

Yummy. I love electronic porn.

[edrel sison]

isolation transformer (input: 216/223/230/237V, output: 226/117V), 1KVA equipped with voltage selectable primary to suit and match secondary loads:

[brady]

Edrel... that's one serious iron.... with an ampere meter...

put in a volt meter, insert somewhere some kind of a common mode choke/s, high freq shunt caps (ala Jon Risch, but just in the pico range)... then compare it with the megabuck imports...

or you can fabricate an AC regenerator, like those AC filters used in lab instruments... heheheheh

[edrel sison]

[nicole]

beefy!! Pwede na siguro palitan yung Opt ng sa 300B ko.

[edrel sison]

:clap: beefy!! Pwede na siguro palitan yung Opt ng sa 300B ko.

pwedeng pwede. just drop me a message and i can start to work on it.

Yummy. I love electronic porn.

more to come. just tune in.

Edrel... that's one serious iron.... with an ampere meter...

put in a volt meter, insert somewhere some kind of a common mode choke/s, high freq shunt caps (ala Jon Risch, but just in the pico range)... then compare it with the megabuck imports...

or you can fabricate an AC regenerator, like those AC filters used in lab instruments... heheheheh

bay honestly i have not thought about it yet but who knows, one of these days i can probably squeeze in and explore!

[vintage_dog]

Superb craftmanship and quality! This was custom-built by Edrel for me given the specs for my amps and voltage situation in my room: manage input voltage of 240-250v while providing clean and relatively stable outputs of 226v and 117v (specs for most vintage amps) +/-2%volts at varying loads of 1-4A.

Congrats Edrel and thanks for your patience on this project . as you have heard in my room, musical presentation is cleaner. i can't live without it now

isolation transformer (input: 3 positions, output: 226/117V), 1KVA equipped with voltage selectable primary to suit and match secondary loads:

[edrel sison]

VD thank you! I appreciate your patience in bearing with me to come up with what you need. Thanks for the many dinner and sumptuous snacks along the way!

[brady]

:clap: beefy!! Pwede na siguro palitan yung Opt ng sa 300B ko.

Hi Nic... from personal experience. We've replaced OPT for two known brands (admittedly, neither top-of-the-line), a PP KT88 and a PP EL34. Edrel's transformer was obviously better than the original iron the units came with.