Search found 18 matches

by pascal.verdet
Sat Nov 04, 2017 3:55 am
Forum: Test, Measurement and Repair
Topic: Loftech TS-1 Schematics
Replies: 36
Views: 84563

Re: Loftech TS-1 Schematics

Maybe I will have to tell you exactly how to do this since I have only been thinking about this for more than 3 decades.
Why not ? There is more idea in two heads :lol:
by pascal.verdet
Fri Nov 03, 2017 12:25 pm
Forum: Pro Audio Design
Topic: A Modern Loftech TS-1 Audio Test Set
Replies: 66
Views: 191119

Re: Loftech TS-1 Schematics

Hi JR, and Wayne, Many thanks for your help. I'm studying the TS-1, because I would like to make the same, with low distortion oscillator, frequency counter, and dB meter, based on THAT DN119 "Wide Ranging dB Meter" with a PIC micro controller for the both frequency counter dB meter and di...
by pascal.verdet
Fri Nov 03, 2017 12:25 pm
Forum: Test, Measurement and Repair
Topic: Loftech TS-1 Schematics
Replies: 36
Views: 84563

Re: Loftech TS-1 Schematics

Hi JR, and Wayne, Many thanks for your help. I'm studying the TS-1, because I would like to make the same, with low distortion oscillator, frequency counter, and dB meter, based on THAT DN119 "Wide Ranging dB Meter" with a PIC micro controller for the both frequency counter dB meter and di...
by pascal.verdet
Fri Nov 03, 2017 6:54 am
Forum: Pro Audio Design
Topic: A Modern Loftech TS-1 Audio Test Set
Replies: 66
Views: 191119

Re: Loftech TS-1 Schematics

Many thanks JR. Since dB and frequency are common input J1, Is this the same path for the two functions, or is the difference in operation just made by the S2 switch ? Pin 12 of 74C926 are the clock input. What is the secret to differentiate the audio level, and the frequencies? What is the exact ro...
by pascal.verdet
Fri Nov 03, 2017 6:54 am
Forum: Test, Measurement and Repair
Topic: Loftech TS-1 Schematics
Replies: 36
Views: 84563

Re: Loftech TS-1 Schematics

Many thanks JR. Since dB and frequency are common input J1, Is this the same path for the two functions, or is the difference in operation just made by the S2 switch ? Pin 12 of 74C926 are the clock input. What is the secret to differentiate the audio level, and the frequencies? What is the exact ro...
by pascal.verdet
Thu Nov 02, 2017 9:12 am
Forum: Pro Audio Design
Topic: A Modern Loftech TS-1 Audio Test Set
Replies: 66
Views: 191119

Re: Loftech TS-1 Schematics

Studying this schema. I have simple question...
the MM74C926 is a 4-digit counter ... I understand how it works in frequency counter,
But, could you explain how do you relate the relative dB level, and its display ?
there is Q2,Q3 and Q4 act as saw tooth integrator ?

Thanks,
by pascal.verdet
Thu Nov 02, 2017 9:12 am
Forum: Test, Measurement and Repair
Topic: Loftech TS-1 Schematics
Replies: 36
Views: 84563

Re: Loftech TS-1 Schematics

Studying this schema. I have simple question...
the MM74C926 is a 4-digit counter ... I understand how it works in frequency counter,
But, could you explain how do you relate the relative dB level, and its display ?
there is Q2,Q3 and Q4 act as saw tooth integrator ?

Thanks,
by pascal.verdet
Mon Jan 20, 2014 8:44 am
Forum: Pro Audio Design
Topic: THAT4316 Battery-Powered One Knob Squeezer Guitar Compressor
Replies: 17
Views: 30924

Re: THAT4316 Battery-Powered One Knob Squeezer Guitar Compre

Hi Wayne,
Nice work. How do you get FFT ?

Cheers,
Pascal