Update on the All World Two or maybe not. - UK Vintage Radio Repair and Restoration Discussion Forum

Buzzkf9cm · 14th Jan 2008, 6:51 pm

Well I have an update on the All World Two. I've decided not to go with the All World Two and go with the Amateur's Short Wave Two. Both units are built on the same chassis, but the Amateur's Short Wave Two is a lot more stable and not susceptible to hand capacitance. The circuit is very close to the Paraset's receiver. Besides I already have an Eddystone #1085 slo-mo drive that's used on the Amateur's Short Wave Two. I don't have the Die-cast chassis so I'm TIG welding one together. In the next couple of days I'll have some pictures of my progress.

73 de Gary,KF9CM

Buzzkf9cm · 18th Jan 2008, 2:48 pm

Well I've started the rough-out stage of the build. This involves component placement, line-up and the boring of holes. Once this is done the radio will be dismantled and the chassis will be smoothed and finished. One big problem has been finding the correct valves that were used on the original (series "E" valves EF8 and EL3). Apparently these valves are very rare, let alone trying to find the the proper holders. With that said, I've decided to use the functional equivalent of these valves, the 6K8 and 6F6. The coil and valves will be mounted on ceramic holders. All in all the project seems to be progressing smoothly. The attachment are photos of my progress and the original.

73 Gary, KF9CM

Buzzkf9cm · 28th Jan 2008, 12:57 am

I'm finally making some progress on the Eddystone replica. Even though not done yet, It's starting to come along pretty well.

73 de Gary,KF9CM

Mike Phelan · 28th Jan 2008, 8:20 am

Neat job, Gary. Your TIGging is better than my MIGging! Agreed that side-contact valves and holders would be difficult to get hold of.

Buzzkf9cm · 28th Jan 2008, 3:19 pm

Thanks for the reply Mike,

I was looking through one of my books (The Secret Wireless War) and a Ham, Bob King G3ASE, built a replica of the Eddystone Amateur's Short Wave Two that he used during WWII as a VI. The replica he built used a 6K7 as the detector. Besides I have about 20 of the steel type anyway.

I could have used a chassis box from LMB or Bud, but they didn't have any that were close to the dimensions of the original.

73 Gary, KF9CM

18th Jan 2008, 2:48 pm	#2
Buzzkf9cm Triode Join Date: Mar 2007 Location: Round Lake Park, IL. USA Posts: 30	Re: Update on the All World Two or maybe not. Well I've started the rough-out stage of the build. This involves component placement, line-up and the boring of holes. Once this is done the radio will be dismantled and the chassis will be smoothed and finished. One big problem has been finding the correct valves that were used on the original (series "E" valves EF8 and EL3). Apparently these valves are very rare, let alone trying to find the the proper holders. With that said, I've decided to use the functional equivalent of these valves, the 6K8 and 6F6. The coil and valves will be mounted on ceramic holders. All in all the project seems to be progressing smoothly. The attachment are photos of my progress and the original. 73 Gary, KF9CM Attached Thumbnails __________________ Valves....The other Integrated Circuit

28th Jan 2008, 12:57 am	#3
Buzzkf9cm Triode Join Date: Mar 2007 Location: Round Lake Park, IL. USA Posts: 30	Re: Update on the All World Two or maybe not. I'm finally making some progress on the Eddystone replica. Even though not done yet, It's starting to come along pretty well. 73 de Gary,KF9CM Attached Thumbnails __________________ Valves....The other Integrated Circuit

28th Jan 2008, 8:20 am	#4
Mike Phelan Dekatron Join Date: Nov 2003 Location: Near Leeds, West Yorkshire, UK Posts: 4,609	Re: Update on the All World Two or maybe not. Neat job, Gary. Your TIGging is better than my MIGging! Agreed that side-contact valves and holders would be difficult to get hold of. __________________ Mike.

28th Jan 2008, 3:19 pm	#5
Buzzkf9cm Triode Join Date: Mar 2007 Location: Round Lake Park, IL. USA Posts: 30	Re: Update on the All World Two or maybe not. Thanks for the reply Mike, I was looking through one of my books (The Secret Wireless War) and a Ham, Bob King G3ASE, built a replica of the Eddystone Amateur's Short Wave Two that he used during WWII as a VI. The replica he built used a 6K7 as the detector. Besides I have about 20 of the steel type anyway. I could have used a chassis box from LMB or Bud, but they didn't have any that were close to the dimensions of the original. 73 Gary, KF9CM __________________ Valves....The other Integrated Circuit

14th Jan 2008, 6:51 pm	#1
Buzzkf9cm Triode Join Date: Mar 2007 Location: Round Lake Park, IL. USA Posts: 30	Update on the All World Two or maybe not. Well I have an update on the All World Two. I've decided not to go with the All World Two and go with the Amateur's Short Wave Two. Both units are built on the same chassis, but the Amateur's Short Wave Two is a lot more stable and not susceptible to hand capacitance. The circuit is very close to the Paraset's receiver. Besides I already have an Eddystone #1085 slo-mo drive that's used on the Amateur's Short Wave Two. I don't have the Die-cast chassis so I'm TIG welding one together. In the next couple of days I'll have some pictures of my progress. 73 de Gary,KF9CM __________________ Valves....The other Integrated Circuit