Tech Talk

Forum home - Go back to Tech talk

Loewe Opta valve radio/record player info required
« Back · 1 · Next »
Return to top of page · Post #: 1 · Written at 6:10:59 PM on 14 March 2016.
	Scotty Location: Melbourne, VIC Member since 26 December 2010 Member #: 794 Postcount: 387
Hi Folks, I have just picked up a Loewe Opta valve radio/record player. I would like to get a schematic for it as someone has had a go at it and I'm not sure if everything is working as it should. The MW/AM tuner is picking up stations ok but the KW, LW & UW don't pick up anything (I'm not even sure what they should pick up). I'm also need to replace one of the rotary control knobs due to one on it being broken. I looked for a model number and all I could find is 247... Any assistance appreciated. Cheers Scott

Return to top of page · Post #: 2 · Written at 6:59:04 PM on 14 March 2016.
	TV Collector Location: Ballarat, VIC Member since 4 January 2011 Member #: 803 Postcount: 456
Impossible to identify without more information or photos as there are a lot of different models of Loewe-Opta radiograms. These are imported from Germany so information is hard to find for them here. European web sites will have a lot more information about it.

Return to top of page · Post #: 3 · Written at 10:35:20 PM on 14 March 2016.
	GTC Location: Sydney, NSW Member since 28 January 2011 Member #: 823 Postcount: 6822
Let us know the valve line-up for starters.

Return to top of page · Post #: 4 · Written at 3:20:40 PM on 20 March 2016.
	Scotty Location: Melbourne, VIC Member since 26 December 2010 Member #: 794 Postcount: 387
I'll put up a couple of pics of the Loewe Opta along with the valve lineup in the next couple of days.

Return to top of page · Post #: 5 · Written at 3:33:07 PM on 21 March 2016.
	Scotty Location: Melbourne, VIC Member since 26 December 2010 Member #: 794 Postcount: 387
Hey guys, I have emailed a couple of pics for loading here so you can see what the unit looks like. I checked the valve lineup today: EL84, EL84, EBC91, EABC80, EF85, ECH81and ECC85. Cheers Scott

Return to top of page · Post #: 6 · Written at 6:09:57 PM on 21 March 2016.
	GTC Location: Sydney, NSW Member since 28 January 2011 Member #: 823 Postcount: 6822
Is there an EM84 tuning indicator missing from that line-up? If so, then that's the line-up for about 40 Loewe-Opta sets of the early 1960s. Looks like a photo will be the clincher for this one.

Return to top of page · Post #: 7 · Written at 6:39:47 PM on 21 March 2016.
	GTC Location: Sydney, NSW Member since 28 January 2011 Member #: 823 Postcount: 6822
The MW/AM tuner is picking up stations ok but the KW, LW & UW don't pick up anything (I'm not even sure what they should pick up). LW = Langeswelle = Long Wave MW = Mittelwelle = Medium Wave KW = Kurzwelle = Short Wave UKW = Ultra Kurzwelle = Very Short Wave = VHF (usually FM, but only 88-~100MHz) Generally, you'll need a good antenna for long wave and shortwave. Some guidelines for shortwave and long distance listening: http://www.gceginc.org.au/shortwave.php

Return to top of page · Post #: 8 · Written at 8:42:20 PM on 22 March 2016.
	Brad Administrator Location: Naremburn, NSW Member since 15 November 2005 Member #: 1 Postcount: 7466
Photos are up. ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ A valve a day keeps the transistor away...

Return to top of page · Post #: 9 · Written at 9:08:20 PM on 22 March 2016.
	GTC Location: Sydney, NSW Member since 28 January 2011 Member #: 823 Postcount: 6822
A close-up of just the dial doesn't really help to much with these sets as a number of Loewe Opta models are quite similar in that respect. Give us a good front on photo of the entire unit.

Return to top of page · Post #: 10 · Written at 1:38:18 PM on 26 March 2016.
	Robbbert Location: Hill Top, NSW Member since 18 September 2015 Member #: 1801 Postcount: 2131
but the KW, LW & UW don't pick up anything (I'm not even sure what they should pick up). The frequencies will be marked on the dial. LW will be aircraft beacons (the band is used for broadcasting stations in Europe). You know what the other bands are for. EL84, EL84, EBC91, EABC80, EF85, ECH81 and ECC85 I have a Grundig radio that looks somewhat similar to your unit. It is possible to guess the functions of some of the valves. ECC85 = FM tuner (can be replaced by 6ES8 for increased performance). ECH81 = frequency changer EF85 = IF amp EABC80 = not sure, never encountered one. Letters indicate 3 diodes and a triode. EBC91 = detector, AF amp EL84 = output valve. My Grundig has a solid state rectifier, I'm guessing yours does too. Mine also has a EM84 (or equivalent) tuning indicator. Equivalents list: EF85 = 6BY7 (found in B&W TV sets), possible = 6BX6, 6EH7, 6EJ7, 6BW7 and more. ECH81 = 6AJ8, possible = 6AE8, X79 ECC85 = 6AQ8, possible = 6BQ7A, 6ES8 and many more. EABC80 = 6AK8, possible = 6T8, 6LD12 EBC91 = 6AV6, possible = 6AT6, 6AQ6 and many more. EL84 = 6BQ5, possible = 6CW5, EL82, EL86, N709, 6P15.

« Back · 1 · Next »
You need to be a member to post comments on this forum.

Tech Talk

Sign In