Here is some more information for whoever may need it.
Replacement 48V. fans are available from Digikey:
p/n P12861-ND @ $19.40
and if you elect to convert to AC fans, like me, the are available from MPJA Inc. (www.MPJA.Com).
p/n 0031-fn @ $5.95
Replacement 48V. fans are available from Digikey:
p/n P12861-ND @ $19.40
and if you elect to convert to AC fans, like me, the are available from MPJA Inc. (www.MPJA.Com).
p/n 0031-fn @ $5.95
I haven't had time to look at it since then. Other stuff came up that I need to take care of first. I should have a chance to look at it this weekend though.
Some more information for 9620 owners
I would highly recommend changing the following resistors to flameproof types:
R46, R48 27 ohms
R47, R49 15 ohms
R52, R53 22 ohms (1/2 watt)
R94, R95 5.1 ohms
Should any of these resistors "flameout", most likely they will burn a hole thru your board.
I would highly recommend changing the following resistors to flameproof types:
R46, R48 27 ohms
R47, R49 15 ohms
R52, R53 22 ohms (1/2 watt)
R94, R95 5.1 ohms
Should any of these resistors "flameout", most likely they will burn a hole thru your board.
If you need replacement volume controls, they're available for $15 a piece ($10 shipping to US) from ABamps. Sounds a little pricey to me!
I still haven't had a chance to look at it. I'll get around to it soon. I'll post updates when I do.
Post #49.........🙂 🙂
Never thought anybody else used calrods as dummy loads,
people think I'm crazy... 😀 😀
Many options available: electric water heaters 7-11 ohm 2KW
large stovetop burner :10-14 ohm/ 1 KW
Small stovetop burner: 4-7 ohm/ 1KW
Resistance goes down w/ even 40V p-p sine , place
element in water for stable resistive load.
Have fun, boil some water with that amp..😎
Never thought anybody else used calrods as dummy loads,
people think I'm crazy... 😀 😀
Many options available: electric water heaters 7-11 ohm 2KW
large stovetop burner :10-14 ohm/ 1 KW
Small stovetop burner: 4-7 ohm/ 1KW
Resistance goes down w/ even 40V p-p sine , place
element in water for stable resistive load.
Have fun, boil some water with that amp..😎
calrods
Apparantly all calrods do not measure the same. I obtained some old electric stove burners from the local dump and found that the large ones read 25 ohms and the small ones read 43 ohms. Of course you could put two large ones in parallel and get 12 ohms at 2KW.
Apparantly all calrods do not measure the same. I obtained some old electric stove burners from the local dump and found that the large ones read 25 ohms and the small ones read 43 ohms. Of course you could put two large ones in parallel and get 12 ohms at 2KW.
Wait a minute!!!
Those resistances ARE for a 230 V electric stove burner.
In Amerika we have TWO voltages in our homes. There is 110 V for things like TVs, computers, radios, lamps, clocks and any small electric device.
230V is used for electric stoves and hot water heaters (some people use gas but that is changing), and large air conditioners.
Those resistances ARE for a 230 V electric stove burner.
In Amerika we have TWO voltages in our homes. There is 110 V for things like TVs, computers, radios, lamps, clocks and any small electric device.
230V is used for electric stoves and hot water heaters (some people use gas but that is changing), and large air conditioners.
Yeah the ones you tested seems to be, but I were refering to ostripper's post. 🙂
Over here much high power stuff like stovetop burners are made for 400V so resistances will be even higher... We have 3-phase 400/230V for stuff like that. A really small apartment might have only 1-phase 230V but usually not.
Over here much high power stuff like stovetop burners are made for 400V so resistances will be even higher... We have 3-phase 400/230V for stuff like that. A really small apartment might have only 1-phase 230V but usually not.
In America...
Homes (and apartments) have only 120/240 single phase. Some businesses use 277V for lighting. Small businesses have 120/208 three phase. The three phase is used mostly for air conditioning.
Large businesses have 460 three phase and transformer it down to whatever they need.
Homes (and apartments) have only 120/240 single phase. Some businesses use 277V for lighting. Small businesses have 120/208 three phase. The three phase is used mostly for air conditioning.
Large businesses have 460 three phase and transformer it down to whatever they need.
- Status
- Not open for further replies.