Dynatron SRX30D: connecting to other hifi units - UK Vintage Radio Repair and Restoration Discussion Forum

SuzieBow · 4th Jan 2019, 4:50 pm

Hello

I am new to forums and have very little knowledge about vintage audio equipment so hopefully this makes some sense!

I have a Dynatron Cavalcade SRX 30D connected to some pretty decent Dynatron speakers. I also have another hifi system made up of a modern Bush amp and a mix of other old/vintage separates (radio and CD player) with a separate set of speakers.

I would like to connect this up as one system so that I no longer have 2 sets of speakers cluttering up the living room and would prefer to keep the Dynatron ones.

Having done a bit of research I'm hopeful that I may be able to use the 5pin DIN tape socket to connect the other separates to the Dynatron but I'm not sure. Can anyone help?

Edward Huggins · 4th Jan 2019, 6:02 pm

Forgive me, bit I can't see why you might want to do this?
There is already a record deck, tuner/amplifier and cassette in your Dynatron. You can readily play you CD player via the Dynatron's DIN input as well.
Adding a second (inferior sounding) system only substitutes what you already have in the one Dynatron cabinet. However, if this is your wish, you will need to connect 8 ohm "dummy loads" to your other stereo amplifier speaker output sockets if you are to run this without having any speakers connected.

Herald1360 · 4th Jan 2019, 8:06 pm

If the Bush amp is "modern" why would dummy loads be needed?

Is what you're trying to do to use the Bush amp as a connection point to feed the other odds and ends into then take its tape output to the Dynatron to use as the main amplifier and speaker setup?

SuzieBow · 20th Jan 2019, 2:22 pm

Quote:

Originally Posted by Edward Huggins

Forgive me, bit I can't see why you might want to do this?
There is already a record deck, tuner/amplifier and cassette in your Dynatron. You can readily play you CD player via the Dynatron's DIN input as well.
Adding a second (inferior sounding) system only substitutes what you already have in the one Dynatron cabinet. However, if this is your wish, you will need to connect 8 ohm "dummy loads" to your other stereo amplifier speaker output sockets if you are to run this without having any speakers connected.

Thanks Edward. So I could connect the CD unit via the DIN socket as an input? Is there a way to connect the separate radio unit at the same time? It's just that the Dynatron tuner doesn't have FM. I suppose as a work around I could just switch in the one I want to use at the time...

Quote:

Originally Posted by Herald1360

If the Bush amp is "modern" why would dummy loads be needed?

Is what you're trying to do to use the Bush amp as a connection point to feed the other odds and ends into then take its tape output to the Dynatron to use as the main amplifier and speaker setup?

This sounds like it might be an option if it's possible? It certainly seems like it makes more sense to input the other units to the Dynatron.

Are these options just a simple case of getting the right cables?

Thank you both for your help!

music-centre · 20th Jan 2019, 3:43 pm

Hi,
There should be an FM Tuner in the Dynatron though, pre-sets for the stations I think, or does this not work?
Steve.

SuzieBow · 20th Jan 2019, 3:52 pm

Ah! I didn't realise the presets were FM, I just need to figure out to set them then. Thanks Steve, as you can tell I really am no expert!

Nuvistor · 20th Jan 2019, 4:12 pm

You will need an aerial for FM even if it is just a simple wire dipole.

SuzieBow · 21st Jan 2019, 10:49 am

Thanks Frank. What would you call this type of aerial socket? I'm trying to search for one online.

Nuvistor · 21st Jan 2019, 1:05 pm

If it’s the type I remember Dynatron used it will be like this.

jamesperrett · 23rd Jan 2019, 12:46 am

Yes, Dynatron certainly used the 2 pin 300 ohm aerial connector on the units I've had. You can either use a cheap ribbon antenna in good signal areas or you would need a small transformer (sometimes called a Balun) to connect it to a standard roof aerial.

SuzieBow · 25th Jan 2019, 5:48 pm

Thanks James

SuzieBow · 27th Jan 2019, 5:45 pm

Quote:

Originally Posted by music-centre

There should be an FM Tuner in the Dynatron though, pre-sets for the stations I think, or does this not work?

Does anyone know where I could find a copy of the manual so that I can figure out how to set the pre-sets? Or even better just know how to set the pre-sets!

Edward Huggins · 27th Jan 2019, 10:57 pm

Well just push the first preset control in and turn it to get the desired radio station - and then do the same for the other four to select further stations. No need for a manual. Simples!

Nuvistor · 27th Jan 2019, 11:34 pm

A photo of the control panel may help jog someone’s memory, I cannot find a user manual on line.

4th Jan 2019, 4:50 pm	#1
SuzieBow Retired Dormant Member Join Date: Jan 2019 Location: Glasgow, Scotland, UK. Posts: 6	Dynatron SRX30D: connecting to other hifi units Hello I am new to forums and have very little knowledge about vintage audio equipment so hopefully this makes some sense! I have a Dynatron Cavalcade SRX 30D connected to some pretty decent Dynatron speakers. I also have another hifi system made up of a modern Bush amp and a mix of other old/vintage separates (radio and CD player) with a separate set of speakers. I would like to connect this up as one system so that I no longer have 2 sets of speakers cluttering up the living room and would prefer to keep the Dynatron ones. Having done a bit of research I'm hopeful that I may be able to use the 5pin DIN tape socket to connect the other separates to the Dynatron but I'm not sure. Can anyone help?

4th Jan 2019, 6:02 pm	#2
Edward Huggins Dekatron Join Date: Sep 2015 Location: Southwold, Suffolk, UK. Posts: 8,327	Re: Dynatron SRX30D: connecting to other hifi units Forgive me, bit I can't see why you might want to do this? There is already a record deck, tuner/amplifier and cassette in your Dynatron. You can readily play you CD player via the Dynatron's DIN input as well. Adding a second (inferior sounding) system only substitutes what you already have in the one Dynatron cabinet. However, if this is your wish, you will need to connect 8 ohm "dummy loads" to your other stereo amplifier speaker output sockets if you are to run this without having any speakers connected. __________________ Edward.

4th Jan 2019, 8:06 pm	#3
Herald1360 Dekatron Join Date: Feb 2007 Location: Leominster, Herefordshire, UK. Posts: 16,535	Re: Dynatron SRX30D: connecting to other hifi units If the Bush amp is "modern" why would dummy loads be needed? Is what you're trying to do to use the Bush amp as a connection point to feed the other odds and ends into then take its tape output to the Dynatron to use as the main amplifier and speaker setup? __________________ ....__________ ....\|____\|\|__\|__\_____ .=.\| _---\__\|__\|_---_\|. .........O..Chris....O

20th Jan 2019, 3:43 pm	#5
music-centre Heptode Join Date: Sep 2007 Location: Brentwood, Essex, UK. Posts: 687	Re: Dynatron SRX30D: connecting to other hifi units Hi, There should be an FM Tuner in the Dynatron though, pre-sets for the stations I think, or does this not work? Steve.

20th Jan 2019, 3:52 pm	#6
SuzieBow Retired Dormant Member Join Date: Jan 2019 Location: Glasgow, Scotland, UK. Posts: 6	Re: Dynatron SRX30D: connecting to other hifi units Ah! I didn't realise the presets were FM, I just need to figure out to set them then. Thanks Steve, as you can tell I really am no expert!

20th Jan 2019, 4:12 pm	#7
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,432	Re: Dynatron SRX30D: connecting to other hifi units You will need an aerial for FM even if it is just a simple wire dipole. __________________ Frank

21st Jan 2019, 10:49 am	#8
SuzieBow Retired Dormant Member Join Date: Jan 2019 Location: Glasgow, Scotland, UK. Posts: 6	Re: Dynatron SRX30D: connecting to other hifi units Thanks Frank. What would you call this type of aerial socket? I'm trying to search for one online.

21st Jan 2019, 1:05 pm	#9
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,432	Re: Dynatron SRX30D: connecting to other hifi units If it’s the type I remember Dynatron used it will be like this. Attached Thumbnails __________________ Frank

23rd Jan 2019, 12:46 am	#10
jamesperrett Octode Join Date: May 2007 Location: Liss, Hampshire, UK. Posts: 1,873	Re: Dynatron SRX30D: connecting to other hifi units Yes, Dynatron certainly used the 2 pin 300 ohm aerial connector on the units I've had. You can either use a cheap ribbon antenna in good signal areas or you would need a small transformer (sometimes called a Balun) to connect it to a standard roof aerial.

25th Jan 2019, 5:48 pm	#11
SuzieBow Retired Dormant Member Join Date: Jan 2019 Location: Glasgow, Scotland, UK. Posts: 6	Re: Dynatron SRX30D: connecting to other hifi units Thanks James

27th Jan 2019, 10:57 pm	#13
Edward Huggins Dekatron Join Date: Sep 2015 Location: Southwold, Suffolk, UK. Posts: 8,327	Re: Dynatron SRX30D: connecting to other hifi units Well just push the first preset control in and turn it to get the desired radio station - and then do the same for the other four to select further stations. No need for a manual. Simples! __________________ Edward.

27th Jan 2019, 11:34 pm	#14
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,432	Re: Dynatron SRX30D: connecting to other hifi units A photo of the control panel may help jog someone’s memory, I cannot find a user manual on line. __________________ Frank