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 Airzone or Prefect
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 Return to top of page · Post #: 1 · Written at 7:42:04 PM on 3 September 2017.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 1574

Has any one heard of prefect radio. I bought one at the Canberra meet and it only cost me 5 bucks but inside looks pretty unmolested. It's battery and haven't pulled the chassis out yet to see the valves. Photos sent.

Prefect Valve Radio


 
 Return to top of page · Post #: 2 · Written at 7:48:51 PM on 3 September 2017.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6005

Might be a badge-engineered set.

Although most battery sets used similar line-ups, it might help to know what that one's is.


 
 Return to top of page · Post #: 3 · Written at 8:59:52 PM on 3 September 2017.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 6345

Photo uploaded.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 4 · Written at 2:46:21 PM on 4 September 2017.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 1574

When I looked in this set last night I was pleasantly surprised. Everything is intact and unmolested. I have sent more photos. even the battery plugs are intact. the only bit that is how ya going is the leatherette . I might have to learn how to recover this.

Prefect Valve Radio
Prefect Valve Radio


 
 Return to top of page · Post #: 5 · Written at 11:28:47 PM on 8 September 2017.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 1574

Well we had a better look at this one tonight and haven't been able to determine who made it but have determined it's pre WW2. I might just start recapping this and check the resistors and speaker transformer.


 
 Return to top of page · Post #: 6 · Written at 12:04:05 AM on 9 September 2017.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 4337

Are you really sure? The speaker is stamped July 1947. Astor was one that did things like that.


 
 Return to top of page · Post #: 7 · Written at 12:55:57 AM on 9 September 2017.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6005

What's the line-up?


 
 Return to top of page · Post #: 8 · Written at 11:03:47 AM on 9 September 2017.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 1574

Yeah the speaker according to the tech is not original


 
 Return to top of page · Post #: 9 · Written at 12:22:26 PM on 9 September 2017.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 4337

Apart from the valve line up which is likely 1K7 or something like that & others of that series check the ARTS&P Label for its letter & there were occasions where the date was stamped inside the pan (Astor again) & on the gang.

If you are fortunate enough you might spot a layout diagram showing "the wets" that were originally in it.


 
 Return to top of page · Post #: 10 · Written at 6:11:56 PM on 9 September 2017.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 1574

Well this little radio works. I replaced the output transformer as it was doing nothing. I found one that bolts perfectly in place and was a proven worker. It has a abundance of crackly insulation on it so I will spend some time replacing that. The on of switch was useless as who ever did work on it just terminated both wires on to the one tag.


 
 Return to top of page · Post #: 11 · Written at 7:43:47 PM on 9 September 2017.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 4337

The reasoning behind looking before powering, is just one great risk assessment. Bad wire & mistakes are common along with those who exceed their level of incompetence and flip the radio to hide the now obvious. Many radios are replaced because the broke down and that should never be forgotten.

Good that this one works that minimises testing. Kriesler have the highest attrition rate when it comes to speaker transformers.


 
 Return to top of page · Post #: 12 · Written at 12:47:50 AM on 10 September 2017.
JamieLee's Gravatar
 Location: Clare, SA
 Member since 27 March 2016
 Member #: 1894
 Postcount: 508

That speaker (Rola) is identical to one I have in a "breadloaf" Astor Mickey!


 
 Return to top of page · Post #: 13 · Written at 3:18:21 AM on 10 September 2017.
Ian Robertson's Gravatar
 Location: Belrose, NSW
 Member since 31 December 2015
 Member #: 1844
 Postcount: 1901

There.were many small radio factories making portables immediate post WW2. Radio techs out of the services and a demand for picnic radios to impress the girls on a date. Baby boom coming up.....

The date on the speaker is probably correct.

I wouldn't recap that radio, I very much doubt if it would be necessary. Those pitch-sealed ducons are usually OK in a battery set.


 
 Return to top of page · Post #: 14 · Written at 6:56:59 AM on 10 September 2017.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 4337

Albeit a commercial repair, obvious that opinions differ (normal) the Roberts R66 I sent out recently had one physically leaking electrolytic cap & Its only Wax Paper cap measured 0.7 Meg. It did not care that it was a 90V radio Battery / Mains, nor the style of wax paper cap. It leaked & would impinge on performance: Gone! Rarely in 50+ years have I found a Wax paper, & several types of oil filled ones, not leaking and badly.


 
 Return to top of page · Post #: 15 · Written at 8:34:05 AM on 10 September 2017.
Robbbert's avatar
 Location: Sydney, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 1378

What valves are in this radio?


 
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