Classic Rotary Phones Forum

Telephone Talk => Collector's Corner => Topic started by: wds on May 13, 2015, 06:58:17 PM

Title: AE 34A3A with the carry handle
Post by: wds on May 13, 2015, 06:58:17 PM
Look what I just bought - and I hope it arrives undamaged, unlike the model 35 I bought last week.  These don't come up very often - if the seller wasn't so far away I'd go pick it up. 
Title: Re: AE 34 with the carry handle
Post by: rdelius on May 13, 2015, 07:34:40 PM
That makes 2. I posted one several months ago, There is a long thread.The guts are more like the type 40 set.
Title: Re: AE 34 with the carry handle
Post by: wds on May 13, 2015, 07:37:10 PM
I remember that thread but couldn't find it.  Thanks for reminding me.

http://www.classicrotaryphones.com/forum/index.php?topic=13919.msg145495#msg145495
Title: Re: AE 34 with the carry handle
Post by: WEBellSystemChristian on May 13, 2015, 07:39:21 PM
Wow, that's certainly a rare phone!

Doesn't Dave F have one of these? It was smashed in shipping, but it had the same carry handle.

http://www.classicrotaryphones.com/forum/index.php?topic=3667.

I want an AE34 now!!! :'(
Title: Re: AE 34 with the carry handle
Post by: stub on May 13, 2015, 11:13:29 PM
wds.
          8) Man that's a GREAT find!!!!!!!!!!!!!  Your's is the L-250 AO right? I found some info on another one ( L-253 AO ) but can't  :o remember  :o where I got it from. I saved it to my computer as the AE- 34 A 11 .              stub
Title: Re: AE 34 with the carry handle
Post by: Doug Rose on May 14, 2015, 05:36:05 AM
Dave...you sure do have some great phones....Doug
Title: Re: AE 34 with the carry handle
Post by: wds on May 14, 2015, 06:46:49 AM
yes, the L 250 AO.  Not sure what the code numbers mean, but I will research and see if I can figure it out.
Title: Re: AE 34 with the carry handle
Post by: stub on May 14, 2015, 01:32:27 PM
wds,
         Your phone should be just like an AE 40 on the inside and the plain AE 34A3 had a different induction coil. stub
Title: Re: AE 34 with the carry handle
Post by: wds on May 14, 2015, 01:58:05 PM
The phone is on it's way - I'm looking forward to getting it and comparing to the 34 and 40.
Title: Re: AE 34 with the carry handle
Post by: wds on May 16, 2015, 11:40:17 AM
it came, and better yet, the mailman didn't destroy it.  I will post better pictures later after I've cleaned it up.  Here's a picture of the inside.  The line cord appears to be original, but obviously the handset cord will need to be switched out. 

Also, I've included a picture of a couple more phones i bought from the same seller.  Also came undamaged.  A very good week for me.
Title: Re: AE 34 with the carry handle
Post by: wds on May 16, 2015, 03:00:27 PM
A few pictures.  One thing I noticed is that the finger hole is not molded - AE took the original shell and cut a hole in it, then fitted the fingerhole with a plate similar to the assembly on a WE 302.  The cut is clearly not a handyman cut, but must have been done at the factory.  Maybe AE was recycling old 34 shells?  Also, mine only has 1 condensor where Rdelius phone has 2 caps.  Even the wiring diagram only calls out for 1.  It really cleaned up nice.  Who ever stored this for the last 50 years took great care with it.  The phone almost looks unused.  If AE was recycling old 34 shells, then that would explain the coiled cord.  The handset still had the original transmitter element, and not the newer style that I don't like. 
Title: Re: AE 34 with the carry handle
Post by: stub on May 16, 2015, 03:34:34 PM
wds,
          SWEEEEEEEEEEET !!!!   stub
Title: Re: AE 34 with the carry handle
Post by: wds on May 18, 2015, 11:08:25 AM
As far as the insides being like the model 40, this version seems to be completely different than the 34 or the 40, but most similar to the model 40.  I like the placement of the coil on the base plate better than the location of the coil in the model 40.
Title: Re: AE 34 with the carry handle
Post by: wds on May 28, 2015, 12:29:37 PM
Just a follow up note, there is an article in the Singing Wires magazine about this style phone.  - April 2011
Title: Re: AE 34 with the carry handle
Post by: wds on May 29, 2015, 08:49:29 AM
Here's one for sale on Ebay. 

AE34 with carry handle (http://www.ebay.com/itm/171807014861?_trksid=p2055119.m1438.l2648&ssPageName=STRK%3AMEBIDX%3AIT)


Title: Re: AE 34 with the carry handle
Post by: unbeldi on August 17, 2015, 10:26:29 AM
The difference between the L-250-A0  and the L-253-A0 is the type of ringing that the unit was configured for from the factory.

L-250-A0  is for  metallic ringing, bridged across tip and ring. This model was delivered with a 2-conductor mounting cord and just a single 1 µF capacitor that was shared for ringing and audio.

L-253-A0 was for divided ringing, using a ground connection as ringing return. This model was equipped with a 3-conductor mounting cord. In this mode of ringing the circuit required a separate ringing capacitor to prevent audio from shunting to ground.  This is the reason you found two condensers on that phone.

So, these numbers are in effect different ordering numbers for a type 34 Monophone.  These were stamped on the bottom of the phone as well as on the wiring diagram label often glued in the inside.  The first catalogs after the introduction of the model still listed these but by the end of the 30s the catalog numbers had changed to shorter codes.
Title: Re: AE 34 with the carry handle
Post by: wds on August 17, 2015, 10:58:35 AM
I always wondered why some of my 34's had 2 condensors, and some had 1.  I have had 4 AE 35's - two of them had two condensors, 2 of them had one.  The two I still have are marked L370 - one condensor.  The other two that I no longer have had two condensors, but had no markings on the phone bottom or on the inside.  Can I assume they would have been marked L373?
Title: Re: AE 34 with the carry handle
Post by: unbeldi on August 17, 2015, 11:20:01 AM
Quote from: wds on August 17, 2015, 10:58:35 AM
I always wondered why some of my 34's had 2 condensors, and some had 1.  I have had 4 AE 35's - two of them had two condensors, 2 of them had one.  The two I still have are marked L370 - one condensor.  The other two that I no longer have had two condensors, but had no markings on the phone bottom or on the inside.  Can I assume they would have been marked L373?

I don't know.  Probably not.

It would be nice to have more early catalogs (1935-1939).

When you look at the 1934 catalog, I think that is the first No. 4055 catalog, they list the following order numbers:

==Discrete induction coil sets==
L-220-AO  Metallic
L-221-AO  Ground

==Induction coil RECEIVER sets==
L-224-AO Metallic
L-225-AO Ground



Title: Re: AE 34 with the carry handle
Post by: unbeldi on August 17, 2015, 11:31:23 AM
Automatic Electric designed this anti-sidetone circuit in a way that placed the third induction coil winding and its balancing network, in form of a non-inductive resistance inherent in the winding, across both the receiver AND the transmitter.  Therefore they had to place the DC-blocking capacitor in front of the balancing network, where it was shared with a ringer for metallic ringing.   But this wouldn't work for grounded ringing, and a second cap was needed.

Western Electric only placed the anti-sidetone winding across the receiver and the capacitor blocked DC from entering the receiver in the secondary coil path, and this always required two capacitors in the unit.

I would have to go and draw some more circuit studies to decide which way is more efficient in the balance between material cost and circuit performance, but I would think that WECo's is more consistent in terms of maintenance. But since AE changed the circuit for the AE40, I guess that answers the question.
Title: Re: AE 34 with the carry handle
Post by: unbeldi on August 18, 2015, 11:19:39 AM
Quote from: wds on May 29, 2015, 08:49:29 AM
Here's one for sale on Ebay. 

AE34 with carry handle (http://www.ebay.com/itm/171807014861?_trksid=p2055119.m1438.l2648&ssPageName=STRK%3AMEBIDX%3AIT)

This example that you quote, which (not-)sold on eBay recently, was manufactured as a L-250-B0 (as stamped on the bottom), which is the manual version of the model.  So someone added the dial later, it does look period-correct though.  The ringer  however is a later version; whoever restored this, probably swapped in this straight-line high-impedance type 45 ringer, to replace a frequency ringer; what a shame.

Title: Re: AE 34 with the carry handle
Post by: AE_Collector on August 21, 2015, 12:17:04 AM
And the proper ringer with the specially angled bracket for the AE34 likely went in the trash.

Terry

Title: Re: AE 34 with the carry handle
Post by: Jack Ryan on August 21, 2015, 02:10:18 AM
Quote from: AE_Collector on August 21, 2015, 12:17:04 AM
And the proper ringer with the specially angled bracket for the AE34 likely went in the trash.

The "easy-lift" version didn't have an angled bracket.

Jack
Title: Re: AE 34 with the carry handle
Post by: AE_Collector on August 21, 2015, 02:23:56 AM
Oh...yeah...You must be right. See, I need one of these 34B 34A sets of my own. I have only seen pictures.

Terry