One tube regen does not receive local station at 580 KHz

View previous topic View next topic Go down

One tube regen does not receive local station at 580 KHz

Post by ve2age on Mon Aug 09, 2010 10:39 am

Hello,

I am new to this forum.

I recently built a one tube Armstrong regen from a kit. It is sold by Borden Radio Company, Radio Daze and another company whose name I forget. The tube is a 3S4 which will take up to 45 Volts DC on the plate. It works well with 22.5 Volts. I have tried two antennas. The first is a 40 foot "short" wire antenna in my apartment. The second is the aluminum window frame in my bedroom. Booth work equally well. The radio works without a ground.

I get the 3 local stations above 1000 KHz but cannot receive the 50 KW local station
at 580 KHz. Do any of you know what I could do to receive the 580 KHz station?

Thanks.

Robert


Last edited by ve2age on Mon Aug 09, 2010 12:22 pm; edited 1 time in total (Reason for editing : typo)

ve2age
New Member
New Member

Number of posts : 4
Registration date : 2010-08-09

Back to top Go down

Re: One tube regen does not receive local station at 580 KHz

Post by Resistance is Futile on Tue Aug 10, 2010 2:17 pm

You might try replacing the caps, one at a time, and make sure the tunning cap has no shorts. If you can also test the tube. You may have used the wrong cap in your building it. pale



avatar
Resistance is Futile
Member
Member

Number of posts : 989
Age : 73
Registration date : 2008-03-12

Back to top Go down

Re: One tube regen does not receive local station at 580 KHz

Post by ve2age on Tue Aug 10, 2010 3:57 pm

Thanks Cliff.

Robert

ve2age
New Member
New Member

Number of posts : 4
Registration date : 2010-08-09

Back to top Go down

Re: One tube regen does not receive local station at 580 KHz

Post by sprman on Sat Aug 14, 2010 9:04 am

Look for cold solder joints or check the coil .. Sprman : )

sprman
Member
Member

Number of posts : 374
Age : 62
Registration date : 2008-03-27

Back to top Go down

Re: One tube regen does not receive local station at 580 KHz

Post by ve2age on Sat Aug 14, 2010 3:19 pm

Thanks Sprman.

Robert

ve2age
New Member
New Member

Number of posts : 4
Registration date : 2010-08-09

Back to top Go down

Re: One tube regen does not receive local station at 580 KHz

Post by pawpawhunt on Thu Dec 01, 2011 8:29 pm

you might ck the two bypass cap's on the RF chock to be sure they are not swaped or in the the wrong place. the one i built from scratch works great. will send u schematic if you need it!

pawpawhunt
Member
Member

Number of posts : 25
Registration date : 2011-11-10

Back to top Go down

Re: One tube regen does not receive local station at 580 KHz

Post by ve2age on Sun Dec 04, 2011 5:14 pm

Thanks for the advice pawpawhunt. About a year ago, I
got the solution from someone on another forum. It is to connect a cap (I forget the value) between the tuning cap and the chassis ground. It is connected with aligator clips (and insulated sleeving). It is disconnected to receive higher frequency stations.

A change in the number of turns on the coil might eliminate the need for the fixed cap. Lance Borden, who sells the kit, is aware of my thoughts on the subject.

Robert Cherry

ve2age
New Member
New Member

Number of posts : 4
Registration date : 2010-08-09

Back to top Go down

Re: One tube regen does not receive local station at 580 KHz

Post by Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum