Spork67 Posted August 5, 2016 Posted August 5, 2016 Sometimes. It is important to realise what thermal paste is and how it works: Thermal paste consists of a very fine powder, suspended in a liquid (usually a synthetic oil). When applied, the paste spreads out and fills up small gaps between the surfaces of the heat sink and the device/s. Over time, the oil can evaporate (though I seen some which is still gluggy after 40 odd years). This is usually of no consequence, UNLESS the device/s are disturbed. If the device/s are removed, then the old paste must be removed and replaced. For my part, if I am doing a big refurb, I usually remount and replace the thermal paste as a matter of course. But that's mainly because I reckon I do a better job than the manufacturer did. But I'm a bit arrogant like that. Thanks Mr Beeblebrox. So - I guess if I don't remove the part, I don't need to repaste.
Green Wagon Posted August 5, 2016 Posted August 5, 2016 Sometimes. It is important to realise what thermal paste is and how it works: Thermal paste consists of a very fine powder, suspended in a liquid (usually a synthetic oil). When applied, the paste spreads out and fills up small gaps between the surfaces of the heat sink and the device/s. Over time, the oil can evaporate (though I seen some which is still gluggy after 40 odd years). This is usually of no consequence, UNLESS the device/s are disturbed. If the device/s are removed, then the old paste must be removed and replaced. For my part, if I am doing a big refurb, I usually remount and replace the thermal paste as a matter of course. But that's mainly because I reckon I do a better job than the manufacturer did. But I'm a bit arrogant like that. Yeah because manufacturers always get it right hey ............. Where was that pic of the amp that had shares in the 'unick' grease company ? Some tv's have power supply transistors pushed right to the edge of what they are rated to. On those they use very specialized thermal glue. Normal paste will just result in the device expiring rapidly.
bob_m_54 Posted August 5, 2016 Posted August 5, 2016 Because I live in a coastal area, some of the older gear I've had to repair can be problematic. The biggest problem is that salt air causes corrosion on component leads. What I have found is that the corrosion can extend down into the solder joint. It may not be obvious, even using good lighting and magnification, but when you try to remove the solder and re-solder the joint you find that the solder just doesn't want to wet properly. Usually this means removing the component and mechanically cleaning the component leads before re-soldering it. This can add a lot of hours to the job.
The Fez Posted August 5, 2016 Posted August 5, 2016 (edited) My view on this is. If your not planning on learning some basic electronics. Spending a few years minimum to learn what isn't taught in any school/college/training center. Then you will be 100% at the mercy of what you buy, and where you take it to be worked on. As such, you will have to be prepared for the occasional buttsex you will get from those you take it to that say it is or isnt repairable and how much they want to either tell you this or actually do the repair. Best part with older gear isn't always the repairing of the fault. It's the correction and correct repair of what the previous ham fisted hole digger has done to the thing with his to hot or to cold brazing iron. Like all second hand things. The winner is the person that knows when to walk away...... That's hardly a good endorsement for vintage audio. Wouldn't 99% of vintage audio enthusiasts fall into the "non-technical" category? Vintage audio is a vast and interesting branch of the hifi hobby. Ignoring the technical side and all its sub branches for a moment you can explore innovation, industrial design, invention, history, culture, heritage - all have value and can be of interest. The funny thing is, lots of guys in this hobby don't really know or have an understanding or appreciation of the history of audio. That's cool, but I'd encourage the OP and any others to dive into vintage audio and you'll be quite surprised at what you will learn. It also gives you a good grounding and a better appreciation of contemporary audio. For instance I was at a GTG recently where a certain vintage integrated amplifier was being showcased. It sounded wonderful and IMO it is an absolute design icon. One of the guys there wanted to know about it, and I told him this piece of audio history was originally drawn and built in 1978. A jaw drop moment for him for sure not only with respect to the design, but just how good it sounded. ...Couldn't believe it, 1978??!! and now is interested in exploring this make a bit more... Edited August 5, 2016 by The Fez 3
Happy Posted August 5, 2016 Posted August 5, 2016 That's hardly a good endorsement for vintage audio. Wouldn't 99% of vintage audio enthusiasts fall into the "non-technical" category? Vintage audio is a vast and interesting branch of the hifi hobby. Ignoring the technical side and all its sub branches for a moment you can explore innovation, industrial design, invention, history, culture, heritage - all have value and can be of interest. The funny thing is, lots of guys in this hobby don't really know or have an understanding or appreciation of the history of audio. That's cool, but I'd encourage the OP and any others to dive into vintage audio and you'll be quite surprised at what you will learn. It also gives you a good grounding and a better appreciation of contemporary audio. For instance I was at a GTG recently where a certain vintage integrated amplifier was being showcased. It sounded wonderful and IMO it is an absolute design icon. One of the guys there wanted to know about it, and I told him this piece of audio history was originally drawn and built in 1978. A jaw drop moment for him for sure not only with respect to the design, but just how good it sounded. ...Couldn't believe it, 1978??!! and now is interested in exploring this make a bit more... but seriously, vintage audio here is way overpriced
The Fez Posted August 5, 2016 Posted August 5, 2016 but seriously, vintage audio here is way overpriced You can say that about anything - it simply depends on what you want and what you are willing to pay..
Happy Posted August 5, 2016 Posted August 5, 2016 You can say that about anything - it simply depends on what you want and what you are willing to pay.. i still maintain vintage audio is particularly overpriced. yes anything is overpriced here but that's normally due to shipping etc whereas most overpriced vintage audio gear here is well just overpriced.
Zaphod Beeblebrox Posted August 5, 2016 Posted August 5, 2016 but seriously, vintage audio here is way overpriced So is an original Phase HO Falcon. People still pay silly money for a hard riding, uncomfortable, phenomenally fuel-inefficient, average handling and really not all that fast vehicle. For what people pay, you can buy half a dozen A-45 Mercs that would eat an HO for breakfast. And don't get me started on Monaros.... 1
bob_m_54 Posted August 5, 2016 Posted August 5, 2016 So is an original Phase HO Falcon. People still pay silly money for a hard riding, uncomfortable, phenomenally fuel-inefficient, average handling and really not all that fast vehicle. For what people pay, you can buy half a dozen A-45 Mercs that would eat an HO for breakfast. And don't get me started on Monaros.... Only in comfort....
MIKE.D79 Posted August 5, 2016 Posted August 5, 2016 So is an original Phase HO Falcon. People still pay silly money for a hard riding, uncomfortable, phenomenally fuel-inefficient, average handling and really not all that fast vehicle. For what people pay, you can buy half a dozen A-45 Mercs that would eat an HO for breakfast. And don't get me started on Monaros.... So Trevor, What's the deal with Monaros, sounds like you've got to get something off your chest?
Green Wagon Posted August 5, 2016 Posted August 5, 2016 Idiot next door has an old aston. hes an engineer. car runs like a bag of manure. (seriously ive heard better rotaries) why doesnt he fix it. hes an engineer. Im just pointing out that you have two ways of going. Learn or pay someone that has learnt. *Yoda voice* Mmmm do or do not you must. Everyone these days seems to want the answer they want to hear. No one has the desire to try and work stuff out for themselves anymore. 1
bob_m_54 Posted August 5, 2016 Posted August 5, 2016 Idiot next door has an old aston. hes an engineer. car runs like a bag of manure. (seriously ive heard better rotaries) why doesnt he fix it. hes an engineer. Im just pointing out that you have two ways of going. Learn or pay someone that has learnt. *Yoda voice* Mmmm do or do not you must. Everyone these days seems to want the answer they want to hear. No one has the desire to try and work stuff out for themselves anymore. You answered your own question right there.... 1
Green Wagon Posted August 5, 2016 Posted August 5, 2016 Yeah I did say it twice didnt I If he can't work out the mechanics of balancing a few carbs and getting the mixture right, then with his money he should convert it to FI.
rantan Posted August 5, 2016 Posted August 5, 2016 So is an original Phase HO Falcon. People still pay silly money for a hard riding, uncomfortable, phenomenally fuel-inefficient, average handling and really not all that fast vehicle. For what people pay, you can buy half a dozen A-45 Mercs that would eat an HO for breakfast. And don't get me started on Monaros.... Indeed. For some people, nostalgia is a cruel and ruthless mistress . I saw a GTHO in Sydney last year for .............................$475,000 . I almost fell over
Zaphod Beeblebrox Posted August 5, 2016 Posted August 5, 2016 Indeed. For some people, nostalgia is a cruel and ruthless mistress . I saw a GTHO in Sydney last year for .............................$475,000 . I almost fell over I've only ever ridden in a GTHO once (Steve Garland owned it). Horrible, horrible beast. Quick in it's day, but a Diesel Merc would give it a run for the money today. And you get air con.
Zaphod Beeblebrox Posted August 5, 2016 Posted August 5, 2016 So Trevor, What's the deal with Monaros, sounds like you've got to get something off your chest? My uncle had a 6 cylinder Monaro (HT series, I think). Shudder to think what it would worth today. Sold it for a VL Commodore. I reckon the last series of Monaros were arguably the best looking car ever made in Australia. Why GMH discontinued them is yet another mystery.
Happy Posted August 5, 2016 Posted August 5, 2016 What no air con? So what do they do in summer? Sent from my iPad using Tapatalk
Zaphod Beeblebrox Posted August 5, 2016 Posted August 5, 2016 What no air con? So what do they do in summer? Sent from my iPad using Tapatalk Wind the windows down. Like all did back then.
rantan Posted August 5, 2016 Posted August 5, 2016 Wind the windows down. Like all did back then. That, and the under dash vents that cooled your sunburnt legs after a beach picnic
pete_mac Posted August 5, 2016 Posted August 5, 2016 i still maintain vintage audio is particularly overpriced. yes anything is overpriced here but that's normally due to shipping etc whereas most overpriced vintage audio gear here is well just overpriced. Supply vs demand my friend - it's as simple as that. The price is set by the market. 1
Happy Posted August 5, 2016 Posted August 5, 2016 Supply vs demand my friend - it's as simple as that. The price is set by the market. Well if that applies there's nothing overpriced... Sent from my iPad using Tapatalk
rantan Posted August 5, 2016 Posted August 5, 2016 Well if that applies there's nothing overpriced... Sent from my iPad using Tapatalk There is a saying that the true value of something is what someone/ is willing to pay for it. I am not sure if that is true, but it seems to work for Sydney houses and vintage audio gear 2
Happy Posted August 5, 2016 Posted August 5, 2016 There is a saying that the true value of something is what someone/ is willing to pay for it. I am not sure if that is true, but it seems to work for Sydney houses and vintage audio gear Hey vintage audio isn't still as bad as Sydney house prices Sent from my iPad using Tapatalk
pete_mac Posted August 5, 2016 Posted August 5, 2016 Well if that applies there's nothing overpriced... Sent from my iPad using Tapatalk In terms of market forces, yes indeed. For rare or desirable items, money talks. In terms of personal perception of what constitutes good value... well... that's up to the individual. Different strokes for different folks. I personally think that a bunch of things are overpriced, but the manufactures and retailers are happily selling them by the bucketload. 1
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