Giantkiller moves forward into Full Heterodyning.

[innovation_station]

IS thats a bit too fancy to play with for tpu work. In anycase it will take many hours to scope through most of that circuit lifting anything that looks like a low pass filter and is not a simple case of lifting 2 caps although it can be on some really simple cheap amps. The first thing would be to measure what that amp can do off the shelf before it rolls off. Some are already spec for -1 db at 30kz.

i see

well thease were the simplest and the cheepest avibl to me i tend to think thease amps will work they have bilt in crossovers that can be switched off  there is nothing fancy to thease amps they have short circuit  and over heating pertect that is all that is why i circled those caps they are first input and last output caps wich should limit what we are ampflying   

no?

oh there is a bass boost that also can be turned off with a switch

the freq responce is 20hz - 20khz  @ -3db
outout is 50 watts rms x 2 channel @ 4 ohms  THD = less than .09% @ rms settings

ist

[BEP]

@IS

I get the impression you know enough about amplifiers. If I were you I would leave them as-is and work with what they can do. For fun I would suggest you find a way to play with the phase relationship between channels and amplifiers. This can be done at their inputs. If you don't already know you could google 'phase shift networks'.

[turbo]

hi GK 

how is the triple Heterodyning comming along?
did you already created the vortex?

5000/7/35000/7/245000
<5000     - 0        > 5000
7*
<35000   - 30000 > 5000
7*
<245000 - 240000> 5000

i am intrested in your results.
Marco.

[innovation_station]

im puting those amps back togather  gonna return them

found some other amps actually i went amp hunting


i found 2 car amps that are verry simple that i know will work
i got 3 diffrent vhf uhf and fm amps
i got a 12 car antenna boster amp

so i will play

and if still nothing will work i will go to plan b that is a valve microphone amp  at the gutiar shop

ist

[innovation_station]

ok this is the simplest amp i could find  it has only bass and treble controls and gain no cross overs or bass effects this one should be as esay to mod as lift 2 caps care to help bolt?

the freq responce of thease amps is 15hz - 30khz
there is no rms rateing it says 120w @ 2 ch @ 4 ohms total power 240watt

here is a pic of that amp taken all apart
ist