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 2.5 volt dial light bulbs
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 Return to top of page · Post #: 1 · Written at 9:04:54 AM on 7 September 2020.
Simplex's Gravatar
 Location: Bathurst, NSW
 Member since 7 August 2008
 Member #: 336
 Postcount: 336

Putting the finishing touches to a 1930's floor stander radio which I have mentioned in another thread. Has the 57/58/55 2.5v valve lineup and the original dial bulb runs of the heater supply.

The original bulb has long blown and been putting in 2.5v torch bulbs but they do not last long as guess torch bulbs not meant for continuous duty.

By chance would the be a supplier whom has 2.5v edison screw bulbs about, perhaps a stash of NOS bulbs ?

Incandescent bulbs are getting hard to find nowadays. LED's give a horrible blueish light and I avoid the LED path.

Thanks for any help with this.

 Return to top of page · Post #: 2 · Written at 9:46:06 AM on 7 September 2020.
Johnny's avatar
 Location: Hobart, TAS
 Member since 31 July 2016
 Member #: 1959
 Postcount: 412

The automotive supplies would probably have old stock of the miniature interior light fittings.
So, perhaps we may have to resort to say an old plugpack transformer hidden within the chassis and a separate dial light circuit.
With the right voltage choices they could potentially (globes) last for a very long time.

 Return to top of page · Post #: 3 · Written at 9:50:50 AM on 7 September 2020.
Jimb's Gravatar
 Location: Kanahooka, NSW
 Member since 18 November 2016
 Member #: 2012
 Postcount: 660

I think I have some. I will check later. I have one in my 1934 STC model 55 I think and it is lasting well.

 Return to top of page · Post #: 4 · Written at 11:21:09 AM on 7 September 2020.
Robbbert's avatar
 Location: Sydney, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 1380

My oldest radio uses those bulbs, but they kept blowing so I switched over to 3.5 volt bulb, works great.

Last time I looked (a few years ago), both were available at Jaycar.

 Return to top of page · Post #: 5 · Written at 11:31:32 AM on 7 September 2020.
Simplex's Gravatar
 Location: Bathurst, NSW
 Member since 7 August 2008
 Member #: 336
 Postcount: 336

Yes 3.5's were suggested by a fellow collector and have a few but want to hang onto them for old torches I have.

Trouble is the day of the incandescent bulb is over and not sure Jaycar is now even selling torch bulbs of any sort.

Will have a look online.


EDIT: just looked at Jaycar, they have a 4.8v krypton bulb which may do. A new store has opened up at Orange so will pay a visit.

As before there are very few incandescent bulbs about nowadays.

Thanks for the tip re Wagner, forgot about them.

 Return to top of page · Post #: 6 · Written at 11:35:00 AM on 7 September 2020.
GTC's avatar
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6013

Check also Wagner. They keep a pretty diverse stock of parts: https://www.wagneronline.com.au/

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