Ntp 179-240 limiter docs?

[WNStudios]

I've looked through the document section and Googled my ass off but i can not find any documents on this particular limiter. Does anybody have any, or atleast the pinout? Would be very grateful for all info i can get

 

[erik_DK]

In the NTP price list from 1977 you see both the 179-230 and 179-240:

179-230, limiter var. time constants, 24V
and
179-240, limiter fixed time constants, 24V

My guess is, that these are more or less identical, and that at least the pin-out is the same for both units. The 179-230 is in the Technical Documents section. Check it out.

/Erik

 

[gyraf]

Good find, Erik!

Also, in the parts list for that 179-230, the PCB is designated 179-2340 - which could certainly point to being for both -230 and -240

 

[erik_DK]

Good find, Erik!

Also, in the parts list for that 179-230, the PCB is designated 179-2340 - which could certainly point to being for both -230 and -240

Easy find! The price list is on your very own web page.

And I just found this in an old StudioSound magazine from 1976:

Says that the 179-240 is basically the same as the 179-230, but with a switch for pre-emphasis (like eg. the 179-280 - which is also in the tech section)

The 179-230 has provision for stereo coupling and output to meter. I guess the -240 also has.

/Erik

 

[WNStudios]

Aaaaawesome guys! I thought i was a pretty good detective but i have been bested 10 fold! Thank you so much

 

[erik_DK]

have a look at this PDF:

 

[WNStudios]

have a look at this PDF:

Yeah that looks spot on!

 

[erik_DK]

Yeah that looks spot on!

Please report back, if this is completely wrong. I have updated the entry for NTP 179-230 in the tech section to also cover the NTP 179-240

/Erik

 

[WNStudios]

Please report back, if this is completely wrong. I have updated the entry for NTP 179-230 in the tech section to also cover the NTP 179-240

/Erik

Will do! I'm picking it up tomorrow so should be able to confirm during the weekend

 

[WNStudios]

Please report back, if this is completely wrong. I have updated the entry for NTP 179-230 in the tech section to also cover the NTP 179-240

/Erik

Can confirm, worked absolutley perfect

 

[erik_DK]

Can confirm, worked absolutley perfect

Thank you!

 

[WNStudios]

Thank you!

Just got two binders with tech from Sweden and in that i got all the specs etc for the 240 and 240B. Will scan later and upload

 

[erik_DK]

Just got two binders with tech from Sweden and in that i got all the specs etc for the 240 and 240B. Will scan later and upload

Super! I look forward to read it.

Once you have uploaded it, I will remove the 179-240 stuff from the NTP 179-230 section in the tech docs.

What else was in those binders?

/Erik

 

[WNStudios]

Super! I look forward to read it.

Once you have uploaded it, I will remove the 179-240 stuff from the NTP 179-230 section in the tech docs.

What else was in those binders?

/Erik

Sorry got a little distracted.

They're for the SR/LRAB PSM 60000 (program servo mixer) they used in the local radio stations here in Sweden, so most of that stuff is in there.

But ntp specifically I got the 177-600 peak programme meter @and 179-240 and 240b only.

 

[erik_DK]

Sorry got a little distracted.

They're for the SR/LRAB PSM 60000 (program servo mixer) they used in the local radio stations here in Sweden, so most of that stuff is in there.

But ntp specifically I got the 177-600 peak programme meter @and 179-240 and 240b only.

Have you made the scans of the 179-240 and 240b papers?

/Erik