[Boatanchors] [Heathkit] More DX-35 problems

[Bob Macklin]

Can you adjust the drive with the MODE SWITCH in the TUNE position?

Do you have drive with the crystal removed?

Bob Macklin
K5MYJ
Kent (Seattle), Wa,
"Real Radios Glow in the Dark"

----- Original Message ----- 
From: "WØQFC" <erastber at tampabay.rr.com>
To: "Mike Goshay" <w6we at bak.rr.com>; "heathkit" <heathkit at mailman.qth.net>;
<FLBOATANCHORS at yahoogroups.com>; <boatanchors at mailman.qth.net>
Sent: Wednesday, March 18, 2009 6:33 AM
Subject: Re: [Heathkit] More DX-35 problems


Mike:

Thanks for the reply and info.

The plate current reading is from the original DX-35 meter and the watt
meter is a really old MFJ, so I am not sure how accurate they are..

Would a neutralization problem cause the shallow dip AND the problem of not
being able to adjust the drive????

I am 99% sure that it is wired correctly, but possible still a bad
connection. . .

Gene, WØQFC

----- Original Message ----- 
From: "Mike Goshay" <w6we at bak.rr.com>
To: "WØQFC" <erastber at tampabay.rr.com>; "heathkit"
<heathkit at mailman.qth.net>; <FLBOATANCHORS at yahoogroups.com>;
<boatanchors at mailman.qth.net>
Sent: Wednesday, March 18, 2009 9:53 AM
Subject: Re: [Heathkit] More DX-35 problems


756v X .120ma=90.72 w INPUT. You must have a neutrilization problem as your
final  is now actitng like an oscillator. Have someone double check your
rebuild for you. Musta miswired something somewhere.  Mike G w6we
----- Original Message ----- 
From: "WØQFC" <erastber at tampabay.rr.com>
To: "heathkit" <heathkit at mailman.qth.net>; <FLBOATANCHORS at yahoogroups.com>;
<boatanchors at mailman.qth.net>
Sent: Wednesday, March 18, 2009 6:39 AM
Subject: [Heathkit] More DX-35 problems


After correcting some stupid mistakes (One bad solder joint and a unsoldered
connection) and the assistance of a few list members, I was able to get B+
to the oscillator.

The rig works except I have a very shallow plate current dip (at 120 mA (756
volts)) and I can not adjust the grid drive. It stays at 4 mA and can not be
changed with the drive control.

Also, the antenna loading control has NO effect on the plate current
reading.

The watt meter shows 100 watts into a dummy load.

The above conditions exist on any band, using several different xtals.

The rig was rebuilt with all new resistors and caps. . . .

Any ideas on correcting the above problem(s)?

TIA es 73

Gene, WØQFC

Stuff for sale: www.w0qfc.shutterfly.com
Web site: www.w0qfc.com

AF&AM #91 Lafayette CO

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