This may be a daft question, but is Marketing name for the product
"Inverter" ?

Doing a quick search on eBay, several ovens pop up with this name, one
description was "Panasonic Inverter Microwave Oven 1100W" - looks like
a 110V product to me.

I have never heard of a 12 or 24v microwave oven, 1100W at 24v = 45
amps which seems excessive even as a load for a large truck.

Regards,

Mark

On Jul 25, 12:42 pm, "Jimmie D" wrote:
I picked up a couple of inverter powered microwave ovens at the goodwill and
I was wondering if these power suppies can be used wih tube amps and such.
Also would like schematic data if I could so I could see if I can modify
them for other voltages besides thosed they are designed.

Jimmie

"MarkAren" wrote in message
ups.com...
This may be a daft question, but is Marketing name for the product
"Inverter" ?

Doing a quick search on eBay, several ovens pop up with this name, one
description was "Panasonic Inverter Microwave Oven 1100W" - looks like
a 110V product to me.

I have never heard of a 12 or 24v microwave oven, 1100W at 24v = 45
amps which seems excessive even as a load for a large truck.

Regards,

Mark
On Jul 25, 12:42 pm, "Jimmie D" wrote:
I picked up a couple of inverter powered microwave ovens at the goodwill
and
I was wondering if these power suppies can be used wih tube amps and
such.
Also would like schematic data if I could so I could see if I can modify
them for other voltages besides thosed they are designed.

Jimmie


Conventional microwaves control the power by ON/OFF cycling of
the oven. For example, 1/2 power might be 5 seconds on, 5 seconds off.
The inverter technology controls the actual klystron operating voltage
to set the power level, and the food is heated continously. I'd suspect
the variable power feature has horrendous artifacts on the supply
voltage making it completely unsuitable for use by hams.

"Uncle Peter" wrote in message
news

"MarkAren" wrote in message
ups.com...
This may be a daft question, but is Marketing name for the product
"Inverter" ?

Doing a quick search on eBay, several ovens pop up with this name, one
description was "Panasonic Inverter Microwave Oven 1100W" - looks like
a 110V product to me.

I have never heard of a 12 or 24v microwave oven, 1100W at 24v = 45
amps which seems excessive even as a load for a large truck.

Regards,

Mark
On Jul 25, 12:42 pm, "Jimmie D" wrote:
I picked up a couple of inverter powered microwave ovens at the goodwill
and
I was wondering if these power suppies can be used wih tube amps and
such.
Also would like schematic data if I could so I could see if I can modify
them for other voltages besides thosed they are designed.

Jimmie


Conventional microwaves control the power by ON/OFF cycling of
the oven. For example, 1/2 power might be 5 seconds on, 5 seconds off.
The inverter technology controls the actual klystron operating voltage
to set the power level, and the food is heated continously. I'd suspect
the variable power feature has horrendous artifacts on the supply
voltage making it completely unsuitable for use by hams.


Uncle Peter has spoken so i guess i shouldjust give up on the idea.


Jimmie

"Jimmie D" wrote in message
...

"Uncle Peter" wrote in message
news

"MarkAren" wrote in message
ups.com...
This may be a daft question, but is Marketing name for the product
"Inverter" ?

Doing a quick search on eBay, several ovens pop up with this name, one
description was "Panasonic Inverter Microwave Oven 1100W" - looks like
a 110V product to me.

I have never heard of a 12 or 24v microwave oven, 1100W at 24v = 45
amps which seems excessive even as a load for a large truck.

Regards,

Mark
On Jul 25, 12:42 pm, "Jimmie D" wrote:
I picked up a couple of inverter powered microwave ovens at the
goodwill and
I was wondering if these power suppies can be used wih tube amps and
such.
Also would like schematic data if I could so I could see if I can
modify
them for other voltages besides thosed they are designed.

Jimmie


Conventional microwaves control the power by ON/OFF cycling of
the oven. For example, 1/2 power might be 5 seconds on, 5 seconds off.
The inverter technology controls the actual klystron operating voltage
to set the power level, and the food is heated continously. I'd suspect
the variable power feature has horrendous artifacts on the supply
voltage making it completely unsuitable for use by hams.


Uncle Peter has spoken so i guess i shouldjust give up on the idea.


Jimmie


I offered a opinion on Usenet... You can take it for what is worth..

Pete

"Jimmie D" wrote in message
...
Uncle Peter has spoken so i guess i shouldjust give up on the idea.


Jimmie


Why don't you try one and let us know? It might just need additional
filtering
if they are using some sort of pulse width control of the klystron duty
cycle.
I was just expressing an opinion. My kitchen microwave is a Panasonic
inverter type.

Pete

Uncle Peter wrote:


if they are using some sort of pulse width control of the klystron duty
cycle.

Somehow I seem to remember an early commercial 'radio oven' that used
a klystron; can anyone confirm this?

I was just expressing an opinion. My kitchen microwave is a Panasonic
inverter type.

Please post photos of it together with make and model info; if you
feel frisky, photos of the interior and PCBs would also be helpful
together with a photo of the wiring-diagram label that is often
included.

Regards,

Michael

"msg" wrote in message
...
Uncle Peter wrote:

Please post photos of it together with make and model info; if you
feel frisky, photos of the interior and PCBs would also be helpful
together with a photo of the wiring-diagram label that is often
included.

Regards,

Michael

When it croaks. My wife likes it in one piece for now. Magnetron,
not klystron... Typo.

Pete

"msg" wrote in message
...
Uncle Peter wrote:


if they are using some sort of pulse width control of the klystron duty
cycle.

Somehow I seem to remember an early commercial 'radio oven' that used
a klystron; can anyone confirm this?

I was just expressing an opinion. My kitchen microwave is a Panasonic
inverter type.

Please post photos of it together with make and model info; if you
feel frisky, photos of the interior and PCBs would also be helpful
together with a photo of the wiring-diagram label that is often
included.

Regards,

Michael

i thought i did post the model #. dont know what happened. will have to dig
it out again. Wife got a hold of them and gave one to the church and one
became our personal oven so i cant tear it apart. I have long since been
forbidden to do that unless it is really broken.

Jimmie

"MarkAren" wrote in message
ups.com...
This may be a daft question, but is Marketing name for the product
"Inverter" ?

Doing a quick search on eBay, several ovens pop up with this name, one
description was "Panasonic Inverter Microwave Oven 1100W" - looks like
a 110V product to me.

I have never heard of a 12 or 24v microwave oven, 1100W at 24v = 45
amps which seems excessive even as a load for a large truck.

Regards,

Mark

yes, there are appaently 2 types, one is made to run off of 12 volts maybe
24 VDC and the other runs off of 120VAC.
I think the 120VAC initially converts it to 300VDC then aplies it to the
inverter circuit.. Still trying to find a schematic to verify. I would think
this technology could be a major help for amp builders allowing us to build
inexpensive power supplies and easily custom wind the inverter transformers.

Jimmie

Jimmie D wrote:

there are appaently 2 types, one is made to run off of 12 volts maybe
24 VDC and the other runs off of 120VAC.
I think the 120VAC initially converts it to 300VDC then aplies it to the
inverter circuit.. Still trying to find a schematic to verify. I would think
this technology could be a major help for amp builders allowing us to build
inexpensive power supplies and easily custom wind the inverter transformers.

Please dig out the ones you have and take photos, front and rear of the
entire unit and if you don't mind, disassemble and photograph and
components. I can host the photos if you wish (email them to me).
This would _really_ help in the evaluation until any of us find schematics.

Regards,

Michael
msg _at_ cybertheque _dot_ org