Build This MoFo!

[Soundhappy]

....I wanted to mention for people like myself who are broke, its possible to use for the inductor part an old microwave transformer
each one is 25mh and low low dcr of .4ohms....you could also series to make 50mh and still be under 1ohm😀
just leave the hi voltage winding alone.

Lawrence

😀 Dear Lawrence and Gentlemans Good Night Sweet Dreams

 

[Sk8Ter]

😀 Dear Lawrence and Gentlemans Good Night Sweet Dreams

Like Minds 😀 😱


don't let the bed bugs bite.

 

[nicoch58]

microwave
magnetron unit has two beryllium insulators they are the ceramic things
The dust will give cancer don't break them......

 

[thiagomogi]

maybe an autotransformer as an inductor?

 

[Zen Mod]

yup

if you are going to dismantle core , then fix it again , to have airgap

and then again , you can change winding to thicker wire

and then again .... you can change to better lamination .......

 

[thiagomogi]

I'll give you some advice, you're bad with jokes, try to focus only on amplifiers.

Thiago

 

[Soundhappy]

Bi-polarized Nichicon Muse acoustic series is budget economic alternative to more pricey polypro MKP caps.
I use them now in MoFo input and sound quality stay high, interesting cheap component 🙂

http://www.mouser.com/ds/2/293/e-ues-1218987.pdf

UES1V100MEM Nichicon | Mouser France

 

[Zen Mod]

I'll give you some advice, you're bad with jokes, try to focus only on amplifiers.

Thiago

well , problem isn't in my joking , but in fact that you didn't understood given answers:

that autoformer is :
1.not having necessary airgap
2.wire is thin for currents involved
3.lamination is of lower quality than needed

 

[Sk8Ter]

well , problem isn't in my joking , but in fact that you didn't understood given answers:

that autoformer is :
1.not having necessary airgap
2.wire is thin for currents involved
3.lamination is of lower quality than needed

your just upset because you didn't think of it FIRST 😛


lamination is OK but there is much more of it!

It will be a highly dynamic coil! give it a try I think you will be surprised Even without a gap there will be plenty of inductance 🙂

This Primary coil will handle crap loads of current.

 

[Zen Mod]

OK , if you said so ......

 

[Nelson Pass]

Like assembly of Japanese bicycle, appreciation of ZM humor requires great
peace of mind.

😛

 

[El Reino]

I'll give you some advice, you're bad with jokes, try to focus only on amplifiers.

Thiago

Me like Zen Mod's joking. 😀

 

[Ultima Thule]

Inductors are everywhere...

😀 Dear Lawrence and Gentlemans Good Night Sweet Dreams

I see a microwave oven transformer, how many mH, how many mA?

 

[Soundhappy]

R=3.5 Ohm
L= 208.5 mH

 

[Sk8Ter]

R=3.5 Ohm
L= 208.5 mH

oops i goofed sorry ....yes its 3.5ohms LOL so sorry

 

[Sk8Ter]

R=3.5 Ohm
L= 208.5 mH[/QUOTE


Either there is something wrong with my LCR bridge and my little handheld inductance meters... or there is something wrong with yours....😱

not sure what going on but to make sure I just measured it again same reading 25mh but with correct DCR of 3.5ohmsish

 

[Soundhappy]

oops I goofed sorry.... yes its 3.5ohms LOL so sorry

Hello Lawrence
Cool 🙂
For L inductance measurement I have only this small gadget.
The accuracy is not guaranteed.
More precise resistance on DMM show R= 3.08 Ohm.

 

[Soundhappy]

Find another microwave transformer in my junk box. His name is Rusty Dusty.
This one is more high but less large core.
R=2 Ohm
L= 164.1 mH
Who have professional L meter and microwave psu transformer to compare values of mH measurements ?
😀

 

[Soundhappy]

Two windings wire diameters show.
No doubt the tiny one can't handle ~2 A
how much max current for thick wire

 

[Zen Mod]

2A5 per sq. mm is safe bet