The video is ncie and clear, what camera do you use?
Interesting amp, ive seen some funny jacks on grandmas hmv. those speaker jacks havent seen that before either. Must be some sort of old plug that fits them. I do love looking inside equipment.
I'd date this unit to about 1973..75, give or take a year. Design wise it could also be older (I don't think "solid state" being anything special lasted much beyond '73 or so either), but the power transistors use relatively modern packages.
Changing the main filter cap won't affect the loss of the power.Even if you put in a more bigger one(more uf).You'd have to change the transformer.Maybe it will work better without turning all up
@DrCassette Your receiver certainly works much better than my own Onkyo amplifier (A-RV401), which is like 20 years newer... My amplifier has been having trouble with delivering sound to the speakers, mostly at lower volumes... Do you think this could be a matter of leaky capacitors or something like that? By the way, nice flea-market score!!
@grod75 Sounds like you need a new protection relay. One of THE most common problems in amplifiers, really. They're usually fairly standard affairs in Onkyos, so finding one that fits (with some small adaptations to the relay if needed, like cutting off unneeded pins) isn't that big a deal. Voltage, approximate coil resistance and contact current rating need to match. It may be easier to find a DPDT (toggle) than a DPST type.
Not a bad receiver, certainly from '72 to '77 era when they loved those green or blue displays. I recall that Akai and Pioneer both using proprietary speaker plugs for a while in the early 70's.
The video is ncie and clear, what camera do you use?
Interesting amp, ive seen some funny jacks on grandmas hmv. those speaker jacks havent seen that before either. Must be some sort of old plug that fits them. I do love looking inside equipment.
SammyMac 1 month ago
@SammyMac
I used a Panasonic HDC-SD707 for this video.
DrCassette 1 month ago
I'd date this unit to about 1973..75, give or take a year. Design wise it could also be older (I don't think "solid state" being anything special lasted much beyond '73 or so either), but the power transistors use relatively modern packages.
yeoldeengineer 1 month ago
Nicr reciver & very good reception :)
almyyyzzz 1 month ago
Changing the main filter cap won't affect the loss of the power.Even if you put in a more bigger one(more uf).You'd have to change the transformer.Maybe it will work better without turning all up
Nice unit :)
costellom5 1 month ago
@costellom5
A newer fiter cap will improve the peak power output capabilities of the amp. The continuous power output of course doesn't depend on the cap.
DrCassette 1 month ago
Change those gray capacitors, those always leak out.
RetroPCDOS 1 month ago
@RetroPCDOS
Thanks for the advice :)
DrCassette 1 month ago
@DrCassette Your receiver certainly works much better than my own Onkyo amplifier (A-RV401), which is like 20 years newer... My amplifier has been having trouble with delivering sound to the speakers, mostly at lower volumes... Do you think this could be a matter of leaky capacitors or something like that? By the way, nice flea-market score!!
grod75 1 month ago
@grod75
That sounds more like contact problems somewhere. Your amp is not old enough to have bad caps, unless it's a bad design.
DrCassette 1 month ago
@DrCassette Thanks!! I'll check that as well...
grod75 1 month ago
@grod75 Sounds like you need a new protection relay. One of THE most common problems in amplifiers, really. They're usually fairly standard affairs in Onkyos, so finding one that fits (with some small adaptations to the relay if needed, like cutting off unneeded pins) isn't that big a deal. Voltage, approximate coil resistance and contact current rating need to match. It may be easier to find a DPDT (toggle) than a DPST type.
yeoldeengineer 1 month ago
@yeoldeengineer Thanks, I appreciate the detailed explanation... =)
grod75 1 month ago
Not a bad receiver, certainly from '72 to '77 era when they loved those green or blue displays. I recall that Akai and Pioneer both using proprietary speaker plugs for a while in the early 70's.
bluenazz 1 month ago
Certainly from the 70s. I have two other receivers from the 70s and they all look similar.
CenTexVideo 1 month ago