This reduces cathode-to-filament leakage current and extends tube life. For 300B amplifiers, heater elevation alone can reduce hum by 12–15dB.

: Includes data for tablets (iPad), game consoles (Nintendo), drones (DJI), and even automotive electronics like Tesla. Key Features in the Updated Version

In the world of high-fidelity tube audio, few names evoke as much curiosity, controversy, and respect as the (often abbreviated as XZZ or Xin Zhao). For nearly two decades, this obscure yet powerful amplifier design has been a darling of the DIY community. However, until recently, the schematics available online were fragmented, often erroneous, or based on early prototype models.

Below is a functional description of the . (Note: For legal reasons, a redacted block diagram is described here; full PCB layouts are available in the accompanying PDF kit.)

Demo Version Purchase Now

When to Use Excel to vCard Converter Software

Access Excel sheets on Several Platforms

vCard file supports almost all devices, email clients, email services, and cloud services. Therefore, once you have exported Excel contacts to vCard, you can easily export contacts from Excel to Outlook, Android Phone, iPhone, Thunderbird, Gmail, and WhatsApp.

To Make Information Exchange Easy

If you are a user of vCard or VCF format, it makes information exchange easier, unlike Excel sheets or any other traditional business card. So to export excel sheet data into vCard format, you can use Excel to VCF Converter.

Due to the Excel Sheet Size

Excel files are usually large. They take too much storage and load on the opening, where vCard is typically small. So, you can attach vCards to your emails and share them without any file size issues.

Access MS Excel Contacts on Various Devices

Saving your contacts in Excel means you can access them only with MS Excel and other limited third-party programs. Thus opt with XLSX to VCF Online Converter and export excel contacts to vCard and access them on several email programs and applications.

Xin Zhi Zhao Schematic Updated

This reduces cathode-to-filament leakage current and extends tube life. For 300B amplifiers, heater elevation alone can reduce hum by 12–15dB.

: Includes data for tablets (iPad), game consoles (Nintendo), drones (DJI), and even automotive electronics like Tesla. Key Features in the Updated Version

In the world of high-fidelity tube audio, few names evoke as much curiosity, controversy, and respect as the (often abbreviated as XZZ or Xin Zhao). For nearly two decades, this obscure yet powerful amplifier design has been a darling of the DIY community. However, until recently, the schematics available online were fragmented, often erroneous, or based on early prototype models.

Below is a functional description of the . (Note: For legal reasons, a redacted block diagram is described here; full PCB layouts are available in the accompanying PDF kit.)

Frequently Asked Questions

Follow the steps to import contacts from Excel to VCF using the software Spreadsheet Converter:
  • First of all, download and install Excel to vCard Converter.
  • Select the Browse Excel button to add the Excel file.
  • Here, add the excel field corresponding to the vCard field and click Next.
  • Select the option(Create a Single File for all contacts/Save as blank contacts).
  • Specify additional features as per your requirement.
  • You can also choose the specific vCard version like 2.1, 3.0, 4.0.
  • Select the Destination Path button to locate the saving path & hit Convert.
Using the XLS to VCF Free Converter Online, you can perform the conversion of Excel sheet data like name, contacts, title, words into a VCF file without installing any software or application with ease.
Yes, Excel to vCard Converter is free and safe to convert Excel to VCF/vCard format and widely compatible with Excel 2010 and their versions below.
You can export any size of the Excel file containing any number of contacts. The things necessary are that the Excel file is not corrupt.
Download the demo version of the Excel to VCF Converter & convert first 50 XLSX files into VCF(.vcf) format.
Excel to vCard Converter Software Specifications
Free demo Version

Excel to vCard Converter Tool is available in two versions. You can download it and check the features and functions of the software. The Demo of the product comes up with only one limitation: it converts contacts in a partial manner. Thus to overcome the limitation of the demo version, opt for the full licensed version of the converter.

  Demo Version for Windows   Demo Version for macOS
  • Processor: 1 GHz Processor (2.4 GHz is Recommended)
  • Operating System: Windows OS Platforms - Windows 10/8.1/8/7/Vista/XP/2000/98/NT and 95 and Windows Server 2012/2008 R2/2008/2003 R2/2003
  • Memory: Minimum 128MB RAM (512MB recommended)
  • Disk Space: 50 MB for Software installation
  • Processor: Mac Computer with Intel Processor
    Mac Computer with Apple Silicon (Apple M1)
  • Operating System: Support Mac OS: 10.15 Catalina, 10.14 Mojave, 10.13 High Sierra, 10.12 Sierra, OS X 10.11 El Capitan, 10.10 Yosemite, 10.9 Mavericks, and 10.8 Mountain Lion
  • Memory: 4 GB of RAM (4 GB is recommended).
  • Disk Space: 100 GB of free hard disk space required.
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