National NV-850-A Hi-Fi Stereo VCR (1984 Model)

[Gepetto]

I'll touch these up and post pics within the next day or two. Got some stuff to do. Thanks for the advice. Any harm in running it like this for the next day or so?

No harm at all, just heading off your next repair.

 

[derek92994]

No harm at all, just heading off your next repair.

Thanks bud =)

 

[laatsch55]

Are you clear on what the diodes are D2??

 

[derek92994]

Are you clear on what the diodes are D2??

Those black tube things.

 

[laatsch55]

That are stood off the board...yes sir. Higher voltage caps work well...but there is some debate as to how f AR above you can go. In my world anything from 0 volts to 100 is interchangeable if theyfit...

 

[derek92994]

That are stood off the board...yes sir. Higher voltage caps work well...but there is some debate as to how f AR above you can go. In my world anything from 0 volts to 100 is interchangeable if theyfit...

That's a good thing. This machine needs over spec caps due to the power supply section running so hot when the case is on. i run it with the case off and would fan cool it if the case was on. My father ran his in a closed cabinet for 10 years, we went through a few power supply rebuilds.

 

[laatsch55]

And those are all 105 degree caps so .....

 

[derek92994]

And those are all 105 degree caps so .....

I'm very happy with them. Are they Nichicons?

the old ones were 85c caps, no wonder they gave in.

 

[laatsch55]

I think so....should be some Panasonic too. Panasonic builds some good csps.

 

[laatsch55]

How's the WOPL treating you?

 

[derek92994]

I think so....should be some Panasonic too. Panasonic builds some good csps.

Well that's good cos this machine is technically a Panasonic. I think they produce some good stuff, my Panasonic A/C gets absolutely flogged as its too small for the room and its a great little unit, quietest window unit I've had.

 

[derek92994]

How's the WOPL treating you?

I love it, it never gets powered down, neither does the fan. Its double surge protected as well.

 

[laatsch55]

Yeah....I like mine too.....

 

[derek92994]

Yeah....I like mine too.....

Is your main one still the Pig 400?

 

[derek92994]

Testing Recording now.....+8db peaks =)

Result: Outstanding! Having recording level adjustment on a VHS Hi-Fi is a treat, so hard to find them these days in good working order.

Laying down Mike Oldfields 'Five Miles Out" sourced from vinyl -> 24/96khz quality -> light clean filter on pc -> National NV-850 Hi-Fi VCR

 

[laatsch55]

Is your main one still the Pig 400?

Yrp. Till I can shoe in a WOPL 700 I got from Jer the o the r day...

 

[derek92994]

I have another later model Panasonic Hi-Fi VCR upstairs which I'd like to recap one day, similar symptoms. Probably a late 80s/early 90's model. The power supply is in a cage though, pain in the ass. Will tackle that one as well some day.

 

[derek92994]

Transformer gets that hot that I can only hold my hand on it for a couple of seconds...is this ok? Nothing burning up though.

 

[Gepetto]

Transformer gets that hot that I can only hold my hand on it for a couple of seconds...is this ok? Nothing burning up though.

That is very unusual for a transformer...

 

[Northwinds]

Transformer gets that hot that I can only hold my hand on it for a couple of seconds...is this ok? Nothing burning up though.

I hope you have fire insurance Bro