🧲 Schematic T.E.C. Time Travel Unit

[Lumbergooz]

@Num7 : I read a document says you do not need the exact buzzer..I hope this helps

 

[Num7]

I'll keep you updated when I work on it again. It's been a few years since I didn't take it back of its box.

 

[steven chiverton]

the tto and tec schematics are the same

 

[Lumbergooz]

the tto and tec schematics are the same

Yup, Steve is right

 

[Num7]

That's right, didn't notice. I merged both threads.

Thanks for the heads up.

 

[steven chiverton]

what buzzer if your refering to the same 15000hz pezio buzzer used in the bajak capacitor its dosent have a biult in driver circuit and ive never been able to find one listed on some page where the buzzer details was on it just said it dosent have a driver you can get it and it wasent even listed on the same site for it to look at the details

 

[Lumbergooz]

This circuit drives any wafer buzzer..I tried it it works
R1 = 100K,
R2 = 4k7,
T1 = BC547,
L1 = Buzzer inductor,
PZ1 = Piezo element, 27mm, three terminal

 

[steven chiverton]

ive got heaps of buzzers from e bay they all 2 terminal ones so where did you get a 3 terminal buzzer from

 

[Lumbergooz]

got them from dead microwave oven. a gold mine indeed...U also get it from dead washing machine upper bord.

 

[Lumbergooz]

Oh ok. Did you get an audio transformer for your TTU yet?

I got a nice output transformer from a dead tube radio 80 yrs old. it is 4ohm on speaker side and several hundreds on the amp stage.