Remember these?

VK3ZAZ · Post by **VK3ZAZ** » Sat Jul 12, 2014 3:55 pm

Bishop graphics
Ferric Chloride and
Yellow Flouro lights
1961

OH and S

What OH and S?

VK3ZAZ · Post by **VK3ZAZ** » Sat Jul 12, 2014 4:01 pm

Things that glowed in the dark and put out copious radiant heat..

4/250A in class C broadcast service 500 watts output
and 866 mercury arc rectifier stack
'

VK3ZAZ · Post by **VK3ZAZ** » Sat Jul 12, 2014 4:13 pm

OSCAR 6 1974

Equipped with solar panels powering NiCd batteries, AO-6 provided 24 V at 3.5 W power to three transponders. It carried a Mode A transponder (100 kHz wide at 1 W) and provided store-and-forward morse and teletype messages (named Codestore) for later transmission.
AO-6 had a 1.3 watt transmitter into a half-wave dipole antenna. AO-6's receiver input sensitivity was approximately -100dbm (2 uv per meter) and had an AGC that provided up to 26dB of gain reduction optimized for SSB modulation.

145 up 28 down
and 432 up 145 down

Orbital parameters were obtained by programming an STC mini computer at BCAE using one of these

VK5ACY · Post by **VK5ACY** » Sat Jul 12, 2014 6:10 pm

I think there may be a thread about older calculators, but this was used by me at trade school in the late 70s.

My (Civil Engineer) father upgraded his calculator and I scored this beauty. The photo was taken today
with the displayed result of factorial 69 which was the best it could do. A Windows 7 (scientific mode)
will display the result of factorial 3248 ...fairly useless information but the technology progresses !

I was amazed to find the machine ran for a while after the mains supply was removed - the NiCads are
about 40 years old !

VK4TI · Post by **VK4TI** » Sat Jul 12, 2014 8:03 pm

VK5ACY wrote:I think there may be a thread about older calculators, but this was used by me at trade school in the late 70s.

My (Civil Engineer) father upgraded his calculator and I scored this beauty. The photo was taken today
with the displayed result of factorial 69 which was the best it could do. A Windows 7 (scientific mode)
will display the result of factorial 3248 ...fairly useless information but the technology progresses !

I was amazed to find the machine ran for a while after the mains supply was removed - the NiCads are
about 40 years old !

I had one of the first TI calculators , went through college using a slid rule which still functions well and never needs charging offer any problems and is on the money at each use

VK4GHZ · Post by **VK4GHZ** » Sat Jul 12, 2014 9:44 pm

Ahhh!!!
The Croydon Drive-In.

VK5APN · Post by **VK5APN** » Sat Jul 12, 2014 10:31 pm

The confectionary that looked like cigarettes - called FAGS, now being called FADS without the red tip

VK6SIX · Post by **VK6SIX** » Sun Jul 13, 2014 11:30 am

1/2 inch 1962 Birko 60 watts soldering iron.

Purchased by me at Mantons harware East Vic park in 1962.

Sitting on top of a 1980 Milo tin used as a wind shield when on the roof soldering wires or connectors etc.

Remnants of solder dating back to about 1980 in the bottom of the tin.

This iron still works like new and in regular use to work SMD devices in delicate ham stuff.

e&oe

vk6six

VK3YE · Post by **VK3YE** » Mon Jul 14, 2014 5:50 am

A 19 minute wallow in the past: Ham gear sold by Dick Smith 1981 - 2001

https://www.youtube.com/watch?v=q7md4JvDkMs

VK3ZAZ · Post by **VK3ZAZ** » Mon Jul 14, 2014 8:22 am

VK4GHZ wrote:
10402783_783793011653839_4145054396199286404_n.jpg
Ahhh!!!
The Croydon Drive-In.

yeah and T'rak

Don't forget to remove before driving off
LOL

VK3ZAZ · Post by **VK3ZAZ** » Mon Jul 14, 2014 8:26 am

TV techs at Miller radio smoking the cancer stick dragging in the carbon tet fumes mostly got cancer of the throat..

used to be in little yellow tins like oil cans dispensed into noisy pots

for sale (only in ZL for $5)

VK3ZAZ · Post by **VK3ZAZ** » Mon Jul 14, 2014 8:33 am

When I was apprentice in 1961 my job was to grind off old points and rebuild V3312 V3306 vibrators for PYE Radio

circa 1961

VK3ZAZ · Post by **VK3ZAZ** » Mon Jul 14, 2014 8:39 am

VK3YE · Post by **VK3YE** » Wed Jul 16, 2014 7:06 am

This time ... computers

https://www.youtube.com/watch?v=giDiNAkgfUU

VK3ALB · Post by **VK3ALB** » Sun Jul 20, 2014 11:05 am

VK3RX · Post by **VK3RX** » Mon Jul 21, 2014 4:46 pm

Olde time radio ..............

VK3BSF · Post by **VK3BSF** » Thu Sep 11, 2014 12:05 pm

For the history buffs

http://engineeringhistory.tumblr.com/?u ... lelog_name

VK2XSO · Post by **VK2XSO** » Fri Sep 12, 2014 11:05 pm

The most amazing thing is that somebody is still selling them.
And just when you think your "tard-o-meter" is registering a +30, you discover he's sold out of them !

VK2XSO · Post by **VK2XSO** » Fri Sep 12, 2014 11:14 pm

I also have an original box of these little gems in the back shed.

I show them to friends and their eyes glaze over and their mind is flooded with some good childhood memories.

I haven't worked out why outlaw motorcycle gangs are making millions of dollars selling throwdowns to kids.
If you made $1 profit on each box, and how many million children are in this country and could easily chuck a packet of these in 5 minutes.
Not to mention several million adults who'd love to chuck a packet of them.

ZS1II · Post by **ZS1II** » Tue Sep 16, 2014 7:44 pm

My first PC !! 1980 Tandy radio Shack TRS80

VK Logger Ham Radio Forum Archive

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Servisol

Vibrators (The electrical ones!!!)

Good for CMOS

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