HMV stereogram unknown model... please help.
|
|
|
|
Location: Melbourne, VIC
Member since 15 June 2013
Member #: 1364
Postcount: 15
|
I have just picked up this HMV unit and can not find anything indicating which model it is. Can someone point me in the right direction. I'm hoping there is a Web site that I could go to that would list most or all Australian models with pictures. I have provided links to photos for people to look at. Any help would be greatly appreciated.
|
|
|
|
Administrator
Location: Naremburn, NSW
Member since 15 November 2005
Member #: 1
Postcount: 7395
|
G'day Mike,
You can display photos or links to them by either using a photo hosting service or simply e-mail the photos to me and I'll embed them with your comments.
My e-mail address is on my profile page, just click my username to get there.
‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...
|
|
|
|
Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6761
|
Let us know the valve line-up in it. That can often help whittle down the choices.
|
|
|
|
Location: Melbourne, VIC
Member since 15 June 2013
Member #: 1364
Postcount: 15
|
The backing on the cabinet is stapled on. Could this mean that the unit has been refurbed at some stage or would this be normal for a 60's-ish stereogram? After peering through one of the holes in the backing I found a piece of paper stapled to the inside of the cabinet.
V1-6AN7
V2-6N8
V3-6GW8
V4-6GW8
There is also a number in the bottom right hand corner of the piece of paper. "683-2611" . I Googled it and came up with nothing.
Image Link
|
|
|
|
Location: Melbourne, VIC
Member since 20 September 2011
Member #: 1009
Postcount: 1208
|
Not sure of the model, but the chassis is a N3. The model number will be N3-?? These chassis were found in various HMV grams. I do have a circuit diagram for the N3. If you click on to my profile you'll find my email and I'll send you a copy. I will be able to tell you the exact model number, but not straight away.
Cheers.
|
|
|
|
Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6761
|
I have a schematic and service notes for what is termed HMV Model N3 and which matches the valve line-up. The notes contain a diagram that mirrors the one on the inside of your case, other than the drawing reference number (bottom right) is 683-1721 and I think yours is different -- however that may not be significant.
|
|
|
|
Location: Melbourne, VIC
Member since 20 September 2011
Member #: 1009
Postcount: 1208
|
N3 service manual sent. Is yours a HMV "Lyric"? The "Lyric is a Model N3-4Z". The N3-4Y is a HMV "Caprice".
Cheers.
|
|
|
|
Location: Melbourne, VIC
Member since 15 June 2013
Member #: 1364
Postcount: 15
|
Thanks GTC, but I now have a copy of the manual.
Monochrome625, I don't think it is a Lyric or Caprice. In the top left corner on the front is a badge that says "High fidelity" just below the HMV badge. It also has a strip badge across the front towards the bottom that says "Stereo by HMV". There are no other badges.
|
|
|
|
Location: Melbourne, VIC
Member since 20 September 2011
Member #: 1009
Postcount: 1208
|
Yes, I know it is not the Caprice. I have the page for that one. Don't worry I'll find out what it is and will let you know.
Cheers.
|
|
|
|
Location: Sydney, NSW
Member since 28 January 2011
Member #: 823
Postcount: 6761
|
^ The one chassis has served numerous cabinet styles it seems.
|
|
|
|
Location: Silver City WI, US
Member since 10 May 2013
Member #: 1340
Postcount: 977
|
What are the speakers? Magnavox 12WR's?
|
|
|
|
Location: Melbourne, VIC
Member since 20 September 2011
Member #: 1009
Postcount: 1208
|
|
|
|
|
Location: Melbourne, VIC
Member since 15 June 2013
Member #: 1364
Postcount: 15
|
No, the speakers are not Magnavox. They are Plessey. Here are pictures of them.
Image Link
Image Link
|
|
|
|
Location: Melbourne, VIC
Member since 20 September 2011
Member #: 1009
Postcount: 1208
|
These are not the orignal speakers for this unit. HMV usually used Magnavox speakers.
The speakers are a Rola Plessey, type C8M (15 ohms). They a basically a Rola speaker, made in the Rola factory after Plessey took over.
Extract from Loudspeaker Data, Alnico & Ferrite models, Plessey Components Australia, Rola Division, The Boulevard, Richmond, Victoria:-
Data for C8M as follows:
Power handling peak rating - 10 watts.
Fundamental resonance - 75 Hz.
Frequency response - 70 Hz/8 kHz.
Voice coil impedance - 2 or 15 ohms at 400 hz.
Air gap flux density - 9700 (gauss).
Gap flux - 37000 (lines).
Dimensions:
Diaphragm housing diam - 8 1/16" (205 mm).
Baffle opening diam - 7 1/16" (180 mm).
Depth, pad ring to rear - 2 27/32" (72 mm).
Voice coil diam - 1" (26 mm).
Mounting:
Four 5/16" (8 mm) X 7/32" (6 mm) slots spaced 90 degrees on 7 19/32" (15 mm) pitch diam.
|
|
|
|
Location: Melbourne, VIC
Member since 15 June 2013
Member #: 1364
Postcount: 15
|
Ahh OK. As I suspected. The unit has been refurbished at some stage.
|
|
|
You need to be a member to post comments on this forum.
|