maxwall
Well-known member
- Joined
- Nov 17, 2004
- Messages
- 1,134
Looking for a reasonably priced examples for distortion testers for analog tape calibration.
Is Leader LDM-170/171 suitable ? suggestions ? not sure if it will do 600 ohms, I think 100K unbalanced for consumer audio equip etc... http://www.ee.cuhk.edu.hk/~ymfung/ppp/introldm171.pdf
I already know about HP 8903, 331-339A , but too much $$$ , budget is $200 < =
Already have :
Signal Generator ( Leader LAG 120B 600ohm output )
Freq counter ( Tenma ) ,
Scope Tektronix ( 4 ch)
HP 3400A RMS analog voltmeter 600ohm input
Fluke 187 DMM
MRL test tape
BTW, I see too much old test equipment selling at typical auction for high $ without calibration or knowing internal conditions. Usually been lying around in some cellar or salvage enviroment for decades unused. For the most part not worth the risk in my opinion. Although there are some exceptions, bought my Tektronix 576 curve tracer for cheap. furthermore, amp alignment test revealed it to be nearly dead on.
Have a computer based audio interface , but no software for distortion testing ? Any recommended software for free that will get me by..?
Some say , REW , not familiar with this . I'll check into this. What is typical layout or setup for distortion measurements?
https://www.roomeqwizard.com/
Any wisdom ? thanks
Is Leader LDM-170/171 suitable ? suggestions ? not sure if it will do 600 ohms, I think 100K unbalanced for consumer audio equip etc... http://www.ee.cuhk.edu.hk/~ymfung/ppp/introldm171.pdf
I already know about HP 8903, 331-339A , but too much $$$ , budget is $200 < =
Already have :
Signal Generator ( Leader LAG 120B 600ohm output )
Freq counter ( Tenma ) ,
Scope Tektronix ( 4 ch)
HP 3400A RMS analog voltmeter 600ohm input
Fluke 187 DMM
MRL test tape
BTW, I see too much old test equipment selling at typical auction for high $ without calibration or knowing internal conditions. Usually been lying around in some cellar or salvage enviroment for decades unused. For the most part not worth the risk in my opinion. Although there are some exceptions, bought my Tektronix 576 curve tracer for cheap. furthermore, amp alignment test revealed it to be nearly dead on.
Have a computer based audio interface , but no software for distortion testing ? Any recommended software for free that will get me by..?
Some say , REW , not familiar with this . I'll check into this. What is typical layout or setup for distortion measurements?
https://www.roomeqwizard.com/
Any wisdom ? thanks