Radio ID and some help please
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Location: Melbourne, VIC
Member since 20 October 2014
Member #: 1640
Postcount: 19
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G'day Guys, First post here so go easy on me not (-;
This is a project I have had on the back burner for a long time, Had a couple of radio enthusiasts pop round the other night to pick some stuff up, They are possibly on this forum.
And well it inspired me to get my finger out and get this radio back together. I was hoping I could get some information on the radio I have, and just a little bit of help getting it back together...\
I will up load some pictures which will show part of the cabinet restore which I am still working on, and the radio its self.
I have ordered most of the caps to replace but I cannot get any values on the brown wax coated ones, also as you will notice someone has already replaced two of the electrolytic's at some stage and I am not sure if anything has been altered here
I have all the valves stored separately and may need help where they go though I haven't got to that yet...
Anyway for now I will just see how I go posting here and add questions as I go....Pleased to meet you all!
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Location: Melbourne, VIC
Member since 20 October 2014
Member #: 1640
Postcount: 19
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Hmm, do you always need to email admin to post pictures? Well I have done that, hopefully they are up soon...
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Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6803
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do you always need to email admin to post pictures?
No, you can host them on sites like PhotoBucket and post a link here, but I find it easier to send them to Brad.
Brad is on a promise to provide an image uploading capability.
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7451
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G'day Laurie,
Definitely tonight when I get my e-mails.
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A valve a day keeps the transistor away...
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Location: Melbourne, VIC
Member since 20 October 2014
Member #: 1640
Postcount: 19
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No worries, well I shall wait for now, but until then ill fire first question....
It seems I have a common earth on the secondary of the transformer...? This isn't right is it? its an old Ferguson...
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Location: Melbourne, VIC
Member since 20 October 2014
Member #: 1640
Postcount: 19
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Location: Melbourne, VIC
Member since 20 October 2014
Member #: 1640
Postcount: 19
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Location: Melbourne, VIC
Member since 20 September 2011
Member #: 1009
Postcount: 1221
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I think it might be a Kriesler 11-9, which is a console version of a 11-7.
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7451
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The dial glass suggests Kriesler. They did make some behemoth consoles which performed well. I am not sure of the model number. It could be an 11-7/9, as it was a four valver.
On the subject of image uploading, this is a work in progress on the test site and should be going by Christmas if luck goes my way. It is an incredibly complex function. I completely scrapped the old, defunct image uploader when this site shifted to SSL mode about a week ago. In the mean time it is quite okay to either e-mail images to me or as GTC mentioned, use an image hosting service. I'd agree that e-mailing them is the better of the two options until the new uploader is available.
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A valve a day keeps the transistor away...
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Location: Melbourne, VIC
Member since 20 October 2014
Member #: 1640
Postcount: 19
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Its definitely a Kriesler...Unfortunately I am missing the cover glass that fits to the cabinet covering dial glass...
This is a five valve radio, I am desperate for a schematic now, have been having a look through Keven chants circuit diagrams and cannot find anything...I think I may have searched before only being able to come up with a battery powered version...
I have disconnected secondary ground off transformer from circuit and it has continuity with the primary ground...directly through transformer....does this sound right?
Has anyone got any ideas on the value of the brown wax coated bullet like caps I've pictured?
I thought I may have got lucky here with someone knowing this radio back to front to advise me.
I am really going to need a schematic here as its already been heavily tampered with, I've started replacing a lot of the very crispy wiring, but I don't want to go to far at this stage encase I have transformer issues...
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Location: Melbourne, VIC
Member since 20 October 2014
Member #: 1640
Postcount: 19
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Oh and thanks Brad for the fast upload of pictures...they look great, thankyou.
I would greatly appreciate it if anyone could post me a link to a schematic thanks
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Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7451
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Has anyone got any ideas on the value of the brown wax coated bullet like caps I've pictured?
They are usually small value, in the order of nanofarads. You will need a circuit diagram with values indicated for the exact values though.
Does the sheet of glass you need have four holes for the controls to poke through or do they poke through a separate piece of timber?
If it is the former then I'd suggest using Perspex as a replacement if you cannot locate an original glass. It will look similar and it is easier to drill the holes.
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A valve a day keeps the transistor away...
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Location: Melbourne, VIC
Member since 20 October 2014
Member #: 1640
Postcount: 19
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Ok I have found a schematic for the 11-7...Crikey these old diagrams are hard to work through...I am still working through it but so far I cannot see anyplace for this 50μF 450v Electrolytic .The big Blue one pictured which has been added by someone...I am thinking these brown wax coated may be 0.1μF 400v, I should mention that there were 3 of these brown capacitors in circuit,2 of in parallel with the 50μF Blue cap, I have removed some before photos
Here's a link to the schematic
https://vintage-radio.com.au/docs/Kriesler-11-7-technical-service-instructions.pdf.
I actually have a Perspex cover that has already been made for it Brad, it would be nice if I could locate the original though, if not I might do something different. Least of my worries right now though...now its looking like an extremely time consuming process for what it is...
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Location: Melbourne, VIC
Member since 20 September 2011
Member #: 1009
Postcount: 1221
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Laurie.
I'll have a good legible 11-9 schematic uploaded here tonight after I finish work. The 11-9 chassis is virtually the same as the 11-7 but with some minor differences. Also please note, like other Kriesler models from that era, there are some variants of the 11-9. The chassis should have a cardboard label with a model and variant.
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Location: Melbourne, VIC
Member since 20 October 2014
Member #: 1640
Postcount: 19
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Thanks Monochrome, although I think I am getting somewhere...the diagram definitely indicates those caps are C28 ABC 0.1μF 400v paper caps, Why that Electrolytic is there I have no idea but its coming out!
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