The Cheapest (And Best?) SX-70 i-Type power! How-to guide!

My name is Jake and I overhaul and repair instant cameras! Want your camera upgraded like you see here? Then message me through the links below!

In this episode, demonstrate how to wire in an i-Type battery adapter of my own invention - the PolaVolt!

A service that I offer for clients as I refurbish their cameras, I have made this project open source for anyone willing to tackle it on their own.

The only thing I ask in return is you give me some credit if selling this product commercially, and to spread my name around to anyone who asks where you got the idea from :)

A slight warning... the process of wiring in such an adapter (for those seeking the DIY route) is quite time consuming. Set aside 45 minutes to an hour of your time to do such a modification

Like what I do? Find this video helpful or entertaining?
Feel free to buy me a beer (or two!):
https://ko-fi.com/theinstantcameraguy

Getting artifacts in the video? For best quality, manually select 1080p quality, as depending on your bandwidth, YouTube may default to 720p - and YouTube's 720p compression looks like garbage


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Looking for how to wire up an Alpha or Sonar instead?
   • Видео  

Parts list:
- your SX-70!
- 1x enclosed 2xAAA battery holder
- 2x AAA sized '10440' 3.7V lithium ion batteries
- 1x MH-MINI-360 buck converter
- good quality solder and soldering iron
- heat shrink
- kapton tape
- automotive body moulding tape
- 1x 3.7V lithium ion battery charger

Optional:
- 1x 0805 size SMD resistor around 45K to 47K in value (outputting 6.05 to 6.2V respectively on buck converters using a MP2307 chip. Note that bucks based on other chips may need different resistor values, and if you are unsure you should ALWAYS check the output voltage before finishing wiring it up)

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Like all battery adapters on the market, it has it's pros and cons, but the price is right!

Pros:
- uses entirely off-the-shelf components
- very powerful
- compact
- simple design, with no built in charging circuitry to fail, all charging happens externally
- hard cell battery design means batteries are user-replaceable and field-replaceable
- automatic darkslide eject is disabled
- cheap!

Cons:
- yes, it still adds 'bulk' like the other battery adapters do, but is one of the most compact solutions possible
- kinda ugly? But also not really. Its very neat for what it is
- not really the kind of thing the average user can install, but easy for a technician like me to do while I'm overhauling the camera anyway
- on strap-lug models such as the Alpha and Sonars, the strap is a little harder to install due to the battery housing location. Once installed the strap works great though.

Overall the design is very repairable, with all electrical components mounted outside the camera.

44mm-length, AAA size '10440' lithium cells are available cheaply online, and cost around $10AUD for two. Chargers are also available for around $15AUD


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https://www.theinstantcameraguy.com