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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

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Old 19th Nov 2023, 2:07 am   #1
radiograham
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Default ID these items ?

Hi,couple of items hoping someone may be able to id.
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Old 19th Nov 2023, 10:30 am   #2
ms660
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Default Re: Id these items ?

The meter, from the Type 123 Regulator Unit, part of the Marconi A.D. 7092 receiver setup:

https://www.funksammlermilitaria.com...ver/prod_10380

?

Lawrence.

Last edited by ms660; 19th Nov 2023 at 10:48 am. Reason: extra info
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Old 19th Nov 2023, 11:49 am   #3
Phil__G
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Default Re: ID these items ?

https://www.mouser.co.uk/ProductDeta...ctronics/T1163
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Old 19th Nov 2023, 12:30 pm   #4
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Default Re: ID these items ?

That link doesn't work for me.
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Old 19th Nov 2023, 4:28 pm   #5
Phil__G
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Default Re: ID these items ?

Sorry try this?
https://www.mouser.co.uk/ProductDeta...%2Fj4NQA%3D%3D
Not much info other than that 'Pulse' was a manufacturer, prob T1163 is just a generic Audio & Signal Transformer?

Quote:
Originally Posted by Pulse
T1163 is a pulse transformer designed for use in electronic devices. It belongs to the Transformers - Pulse Transformers category and is part of the Pulse series. The transformer comes in a bulk package and the standard package includes 1 piece. The ECCN for this product is OBSOLETE and it has a fake threat in the open market of 65 percent. The REACH status for this product is REACH unaffected. The HTSUS code for this product is 0000.00.0000. The manufacturer of this pulse transformer is Pulse. The product is currently obsolete and its moisture sensitivity level (MSL) is vendor undefined.

Last edited by Phil__G; 19th Nov 2023 at 4:36 pm.
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Old 20th Nov 2023, 9:36 pm   #6
Maarten
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Default Re: ID these items ?

Any Pulse magnetic that has gone out of stock relatively recently and is now only sold by Chinese brokers, is extremely likely to be a compact DIL- or surface mount type ethernet transformer.
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Old 21st Nov 2023, 3:22 am   #7
radiograham
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Default Re: ID these items ?

Thanks for the replies, cannot think of a use for the meter, the transformer may be of use as a inter-valve transformer.
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Old 21st Nov 2023, 9:21 am   #8
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Default Re: ID these items ?

Pulse Engineering, later Pulse Magnetics made a very wide range of wound magnetics. They were big in driver transformers for triggering thyristors, thyratrons as well as base and gate drive transformers for power transistors in SMPS-like systems. I used some of their packaged RF toroids to drive fast diode samplers.

Considering their usual stamping ground, it may be too low inductance for full range audio as an inter-valve transformer.

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Old 21st Nov 2023, 9:35 am   #9
ex seismic
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Default Re: ID these items ?

If the meter is 500 uA then I have a use for it, looks to be about the right size for a Larkspur ATU of which I have one with a o/c meter. Costs met of course.

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Old 21st Nov 2023, 4:30 pm   #10
Maarten
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Default Re: ID these items ?

Quote:
Originally Posted by Radio Wrangler View Post
Pulse Engineering, later Pulse Magnetics made a very wide range of wound magnetics. They were big in driver transformers for triggering thyristors, thyratrons as well as base and gate drive transformers for power transistors in SMPS-like systems. I used some of their packaged RF toroids to drive fast diode samplers.

Considering their usual stamping ground, it may be too low inductance for full range audio as an inter-valve transformer.
Agreed, but do we have clues that the transformer in question is indeed the same as the Pulse one that went out of sale relatively recently and does not seem to have a picture anywhere? At least one Chines trader classifies it as an "IC" so likely a DIL cased component.

The transformer might be something entirely different by another manufacturer.
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