I have a Heath SB200 that has been modified a bit too much.
Someone replaced the stock fan with a muffin fan and they
cut a big hole for the fan in the RF chamber.

I want to replace the muffin fan with a fan resembling the
stock fan. Grainger sells motor and fan blades for appliances
that look close enough. I just need some data to choose the
right one. Most import is the fan blade size. Second would
be any specs for the motor. Stock motors range from 1/500Hp
to 1/20 HP. I suspect one of the smallers one based on physical
size.

Also the meter seems to stick in a couple spots. I don't
see anything obvious like a bent needle. Any hope of finding
a similar meter that I can move the faceplate? Any place that
can repair meters?

All help appreciated.
thanks
chuck

Also the meter seems to stick in a couple spots.

Often, especially in the winter months, due to static electricity.

See if wiping it with water or an anti-static cloth helps.

Tim.

Lick your finder and draw an X of "saliva" on the face. Works great!

PP


"Tim Shoppa" wrote in message
oups.com...
Also the meter seems to stick in a couple spots.

Often, especially in the winter months, due to static electricity.

See if wiping it with water or an anti-static cloth helps.

Tim.

Do a google for Harbach Electronics. He sells a direct replacement for
the original fan. Its about the same size somewhat more efficient.
He also has stuff like a soft start up, an electro optical isolator so
a modern transceiver can be used (the original Heath circuitry
switched 115v which is more than modern transceivers can handle.)
I've done all the Harbach mods on my SB-200. He also has a drop-in
replacement for the filter and rectifier circuitry and a replacement
relay.

I can't help you on your meter question.

Jon W3JT

On 14 Dec 2005 15:04:47 GMT, (Chuck
Sherwood) wrote:

I have a Heath SB200 that has been modified a bit too much.
Someone replaced the stock fan with a muffin fan and they
cut a big hole for the fan in the RF chamber.

I want to replace the muffin fan with a fan resembling the
stock fan. Grainger sells motor and fan blades for appliances
that look close enough. I just need some data to choose the
right one. Most import is the fan blade size. Second would
be any specs for the motor. Stock motors range from 1/500Hp
to 1/20 HP. I suspect one of the smallers one based on physical
size.

Also the meter seems to stick in a couple spots. I don't
see anything obvious like a bent needle. Any hope of finding
a similar meter that I can move the faceplate? Any place that
can repair meters?

All help appreciated.
thanks
chuck

Do a google for Harbach Electronics. He sells a direct replacement for
the original fan. Its about the same size somewhat more efficient.

Nice source. However he wants 40 dollars for motor and fan.
I can buy motor and fan from grainter for 15. All I need is fan
diameter. I might have to guess based on pictures.

On 14 Dec 2005 16:29:58 GMT, (Chuck
Sherwood) wrote:

Do a google for Harbach Electronics. He sells a direct replacement for
the original fan. Its about the same size somewhat more efficient.

Nice source. However he wants 40 dollars for motor and fan.
I can buy motor and fan from grainter for 15. All I need is fan
diameter. I might have to guess based on pictures.

The fan is exactly 3 1/2" in diameter. Each blade is slightly over 1"
wide at the widest point (edge). The blades have pretty close to
a 45 degree pitch to them. This is base on actual measurement of
a Harbach fan which I still have to install.

Jon W3JT

The fan is exactly 3 1/2" in diameter. Each blade is slightly over 1"

Grainger sells a fan with a 3.5 inch blade and 1/150HP motor for 17.
Sounds close to me.

thanks for the help
chuck

Hi Chuck.

I have a SB-200, but I don't have the time to take it apart and
measure the size of the fan right now. Maybe this weekend.

In the meantime, you might load and/or ask he
http://www.harbachelectronics.com/

He sells replace parts for SB-200, SB-220 and others.

Ronnie, N5CSE

"Chuck Sherwood" wrote in message
...
I have a Heath SB200 that has been modified a bit too much.
Someone replaced the stock fan with a muffin fan and they
cut a big hole for the fan in the RF chamber.

I want to replace the muffin fan with a fan resembling the
stock fan. Grainger sells motor and fan blades for appliances
that look close enough. I just need some data to choose the
right one. Most import is the fan blade size. Second would
be any specs for the motor. Stock motors range from 1/500Hp
to 1/20 HP. I suspect one of the smallers one based on physical
size.

Also the meter seems to stick in a couple spots. I don't
see anything obvious like a bent needle. Any hope of finding
a similar meter that I can move the faceplate? Any place that
can repair meters?

All help appreciated.
thanks
chuck