Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio

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From	rbowman <bowman@montana.com>
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Subject	Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio
Date	23 Aug 2025 06:00:08 GMT
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On Fri, 22 Aug 2025 20:00:02 +0100, The Natural Philosopher wrote:

> On 22/08/2025 19:37, Carlos E.R. wrote:
>> On 2025-08-22 20:14, The Natural Philosopher wrote:
>>> On 22/08/2025 14:41, c186282 wrote:
>>>>
>>>>> I got this one when I went to uni:
>>>>>
>>>>> <https://www.etsy.com/es/listing/1791229461/vintage-sanyo-
transistor-
>>>>> radio-amfm>
>>>>
>>>>    I remember those !  🙂
>>>>
>>>>    Alas most of those little old radios had rather poor sensitivity
>>>>    plus poor selectivity.
>>>>
>>> Actually selectivity came easy as adding transistors was way cheaper
>>> than adding valves.
>> 
>> It came from adding intermediate frequency transformer stages, which
>> were not cheap nor easy to adjust.
> 
> They were cheap and they were *really* easy to adjust.
> 
> I build several portable radios.

I spend one winter sort of working my way through radio design history. 
Ever build a regenerative receiver? They're fun.

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Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio John McCue <jmclnx@gmail.com.invalid> - 2025-08-20 15:30 +0000
  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-20 22:38 +0200
    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-20 23:59 -0400
  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio not@telling.you.invalid (Computer Nerd Kev) - 2025-08-21 08:02 +1000
  Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-21 06:52 +0000
    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-21 03:34 -0400
    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 12:28 +0200
      Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-22 09:41 -0400
        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-22 19:14 +0100
          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 20:37 +0200
            Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-22 20:00 +0100
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 22:36 +0200
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-22 21:58 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-23 02:42 -0400
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:22 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:06 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 02:22 -0400
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-24 10:53 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-24 00:22 +0200
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-24 05:10 +0000
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 06:00 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:15 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:32 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-24 10:44 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 05:51 -0400
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-23 18:02 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:34 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-24 00:18 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 23:24 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 04:02 -0400
            Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-22 23:06 -0400
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:11 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 01:53 -0400
          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-22 23:01 -0400
            Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:05 +0100
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 10:20 +0000
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-24 00:27 +0200
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-24 10:49 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-24 21:28 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-25 12:23 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-26 03:32 -0400
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 01:40 -0400
        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-22 20:35 +0200
          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-22 22:26 +0000
            Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-23 01:29 +0200
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 00:23 +0000
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:01 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 10:19 +0000
            Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 06:04 +0000
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:16 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:08 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio "Carlos E.R." <robin_listas@es.invalid> - 2025-08-24 00:30 +0200
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 02:14 -0400
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-23 18:02 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-24 03:51 -0400
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-24 21:19 +0000
        Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-22 19:48 +0000
          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-22 21:57 +0100
            Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 06:25 +0000
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-23 11:20 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:45 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-24 10:46 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-23 23:29 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-24 04:30 +0000
              Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-23 18:02 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-23 21:49 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-24 00:18 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-24 04:59 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-24 19:19 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio The Natural Philosopher <tnp@invalid.invalid> - 2025-08-24 10:47 +0100
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-24 19:19 +0000
                Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-24 22:13 +0000
            Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-23 03:15 -0400
          Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio c186282 <c186282@nnada.net> - 2025-08-23 02:25 -0400
    Re: Have One ? "Regency TR-1" - Orig Commercial Transistor Radio rbowman <bowman@montana.com> - 2025-08-21 20:37 +0000

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